gmors rubber guidebook

-RINGRUBBER GUIDEBOOK

TABLE OF CONTENTSAbout GMORS

Basic O-Ring Elastomers

General Properties of Elastomers

O-Ring Design Reference

O-Ring Standard Size (AS 568A)

O-Ring Standard Size (BS4518)

O-Ring Standard Size (GB/T 3452.1)

O-Ring Standard Size (JIS B2401)

O-Ring Standard Size (Metric)

O-Ring Standard Size (SMS 1586)

X-Ring Design Reference

X-Ring Standard Size

Back-up Ring Design Reference

Back-up Ring Standard Size

O-Ring Kits

V-Ring Standard Size

02

04

19

25

29

38

40

45

54

65

67

68

75

76

82

84

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About GMORS

GMORS- MATCH YOU ALWAYS!

Product Offerings

Welcome to GMORS Rubber!

GMORS Rubber- A company moving forward with continuous improvements. Servicing in Rubberindustry for all kinds of application to fulfill a better world.

O-ringsX-ringsBack-up RingsU-packingsV-sealsSpecial Packing Series

Wear RingsBonded SealsValve SealsWiper SealsHydraulic SealsPneumatic Seals

Since 1981, GMORS has served as the leading rubber component manufacturer in Taiwan. Known for innovation and continuous improvements, GMORS products have been approved for industries of Automotive, Semi-conductor, Medical, Aerospace, Drinking Water, Food & Drug equipment, Sanitary and various industrial grades.

Marching into the 21th century, GMORS Rubber's commitment is to satisfy all industries with the optimum combination of competitive price, high quality and fast service. Our goal is to be your best global partner on rubber components.

GE MAO RUBBER INDUSTRIAL CO., LTD. 03

Main Market

Approved

IndustrialAutomotiveSemi-conductorMedical

Drinking WaterFood & DrugHydraulic / PneumaticAerospace

Manufacturing Process SystemAS9100C ( Aerospace industry approved) ISO/TS 16949:2009ISO 9001:2008IS0 13485:2003 ( medical industry non-implantable approved)

Material CertificationUL ApprovalNSF (Drinking Water)WRAS (UK Drinking Water)

TAF Approved In-House Lab with Integrated Equipment

ISO/TS 16949:2009TS38010

Abo

ut G

MO

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Butyl Rubber(IIR)

Other Common Variations

Cure system - Sulfur-Cured

Butyl rubber is composed by copolymerizing isobutylene which is with small amount of isoprene. It is like EPDM possessing excellent resistance to chemical and polar fluid, outstanding electrical insulation and good ozone resistance. The special properties of butyl rubber are low gas and moisture permeability and high shock absorption. These properties have made butyl rubber the polymer choice in a variety of applications.

IIRs can be formulated with only"white list" ingredients as specified in 21.CFR 177.2600 for use in applications where the elastomer will be in contact with food or beverages, ex. bottle top seal for alcohol or medical.

Standard IIRs are sulfur-cured.

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AlcoholsKetonesDilute acids and alkalisSilicone oils & greasesWater and SteamPhosphate ester based hydraulicfluids - Skydrol(R)Ozone, aging & weathering

Aliphatic & aromatic hydrocarbonsHalogenated solventsPetroleum based oils & greases

Performs Well In... Doesn't Perform Well In...

ASTM D1418Designation

IIR, CIIR,BIIR

ISO/DIN 1629Designation

IIR, CIIR,BIIR

ASTM D2000 /SAE J 200 Codes

AA, BA

Standard Color(s) Black

HardnessRange

Standard LowTemperature

Standard HighTemperature

50 to 80Shore A

-55C-65F

100C212F

Relative Cost Low

General Information

Service Temperatures


Carboxylated Nitrile (XNBR)


Cabboxylated Nitrile is similar to Nitrile rubber, but the polymer backbone has been chemically modified with Carboxylic Acid containing group. This result is XNBR with more excellent abrasion and tear resistance than traditional NBR. For this reason, XNBR based parts are usually applied in dynamic assembly such as seals and rod wipers.

Standard XNBR compounds are sulfur-cured.

Aliphatic hydrocarbonVegetable and mineral oils and greasesDieselWaterDilute acids, alkali and salt solutions

Aromatic hydrocarbonChlorinated hydrocarbonKetonesAcetic acidEthylene esterStrong acidsBrake fluid with glycol base


ASTM D1418Designation XNBR

XNBRISO/DIN 1629Designation


BG, BK,CH


HardnessRange



Special CompoundHigh Temperature

50 to 90Shore A

-20C-4F

100C212F

125C257F

Relative Cost Low

General Information


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Chloroprene Rubber(CR)


Cure system - Metal oxide cured

Chloroprene was one of the first successful synthetic elastomers in 1931 made by Dupont, and the trade name is Neoprene. It is prepared by emulsion polymerization of chloroprene, or 2-chlorobutadiene. CR is a multi-purposed elastomer which yields a balanced combination of properties. It has good resistance to sun, ozone, weather and performs well in contact with oils and many chemicals. It also displays outstanding physical toughness and good resistance to fire.

Chloroprene has been used in thousands of diverse environment, including automotive, wire and cable industries.

CR is usually used in air condition system, especially old refrigerated media like R12 or R22 and lubricant with mineral oil.

Standard CRs are metal oxides & organic accelerators.

RefrigerantsAmmoniaWaterSilicone grease and oilsHigh aniline point mineral oil

Aromatic hydrocarbonsKetonesEstersEthersStrong oxidizing acidsChlorinated hydrocarbons


General Information






CR


Hardness Range

Standard Color(s)

Relative Cost


SpecialCompoundLow Temperature

CR

30 to 90 Shore A

-40C-40F

100C212F

125C257F

-55C-67F

Black

Low

BC, BE



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Epichlorohydrin(CO, ECO, GECO)

Cure system - Sulfur-Cured vs. Peroxide-Cured


Hydrin is the trade name of epichlorohydrin elastomers made by Zeon Chemicals. epichlorohydrin elastomers are available as a homopolymer(CO), copolymer(ECO,GCO),and terpolmer(GECO). All epichlorohydrin rubbers offer low temperature flexibilities; resistance to oils, fuel and common solvents; higher temperature resistance than NBR; good weather ability and good dynamic properties.

ECO are usually Peroxide-cured for standard compounds of Ge Mao. It also can be Sulfur-cured to improve flexible property in dynamic system but will reduce the heat resistance and cause poorer compression set.

The typical applications of epichlorohydrin are fuels or LPG system in automotive.

Mineral oil and greaseLPG, fuelsSilicone oil and greaseOzone, weather

Ketones and estersAromatic and chlorinated hydrocarbonBrake fluidsaldehydes


General InformationASTM D1418Designation

CO, ECOGECO

CO, ECOGECO



CH


HardnessRange




50 to 80Shore A

-40C-40F

125C257F

135C257F

Relative Cost Medium


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Ethylene Propylene Rubber(EPR, EPDM)



EPDM is a Copolymer of ethylene and propylene, and further a terpolymer of ethylene and propylene with a small amount of a third monomer (usually a diolefin) to permit vulcanization with sulfur. Generally Ethylene Propylene Rubber possesses excellent resistance to ozone, sunlight and weathering, and has very good flexibility at low temperature, good chemical resistance (many dilute acids and alkalis, polar solvents), and good electrical insulation property.

EPDMs are often internally lubricated to improve ease of installation or reduce friction for dynamic applications.EPDMs can be formulated with only "white list" ingredients as specified in 21.CFR 177.2600 for use in applications where the elastomer will be in contact with food or beverages. EPDMs can be submitted for approval by the National Sanitation Foundation (NSF) for use in drinking water applications.EPDMs are usually used in automotive air conditioning system where R134a refrigerant gas and POE or PAG lubricant and new refrigerant for environment protection R744 is used. In R744 air conditioning system, it requires excellent resistance to explosive decompression in hydrogen dioxide at high pressure and high temperature. EPDMs are usually used in phosphate ester type hydraulic fluids.

Standard EPDMs are usually sulfur-cured. Sulfur-cured compounds offer better flexible properties but are more prone to hardening and poorer compression set with high temperature. Peroxide-cured EPDMs have better heat resistance and lower compression set. It complies with long time usage especially for hose system of construction industry, but at the same time is more expensive and more difficult for production than the sulfur-cured.

AlcoholsAutomotive brake fluidKetonesDilute acids and alkalisSilicone oils & greasesSteam to 400FWaterPhosphate ester based hydraulicfluids - Skydrol(R)Ozone, aging & weathering

Aliphatic & aromatic hydrocarbonsDi-ester based lubricantsHalogenated solventsPetroleum based oils & greases


General Information





EPM,EPDM

EPM,EPDM


Hardness Range

Standard Color(s)

Relative Cost


Special LowTemperature

Special HighTemperature

30 to 90 Shore A

-55C-67F

125C257F

150C302F

-55C-67F

Black

Low

AA, BACA, DA



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Ethylene/Acrylic elastomer( AEM, VAMAC)

Cure system - Amine-Cured


Ethylene/ acrylic elastomer is a copolymer of ethylene and methyl acrylate plus a small amount of a curesite monomer containing carboxylic acid groups. AEM is a tough, low-compression-set rubber with excellent resistance to high temperatures, hot mineral oil, fluids and weathering. The low temperature flexibility and mechanic properties are better than ACM, but it is not well resistant to low aniline oil (like ASTM No. 3 oil) and polar solvents. AEM is typically chosen for applications requiring improved performance versus Nitrile rubber, Neoprene or reduced cost versus higher-end elastomers such as HNBR, FKM. It also usually is applied in automatic industry.

Standard AEM compounds are Amine based vulcanization system.

AEM has good flexibility and good tear resistance, abrasion and compression set, and it usually is used in shaft lip seals especially in automatic transmission fluids.Special VAMAC compounds can improve oil resistance but will sacrifice some low temperature properties

Ozone, weather and hot air.Automatic transmission fluids (ATF)and Power steering fluidsWater

KetonesFuelsBrake fluids


General InformationASTM D1418Designation AEM

AEMISO/DIN 1629Designation


EE


HardnessRange



Special CompoundLow Temperature


40 to 85Shore A

-30C-22F

150C300F

-40C-40F

175C345F

Relative Cost Medium-High


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Fluorocarbon(FPM, FKM, VITON)

Cure system Bisphenol cured vs. Peroxide-Cured


Fluorine Content

Fluorocarbon is a well- known high performance rubber, and especially it has excellent resistance to high temperature, ozone, weather, oxygen, mineral oil, fuels, hydraulic fluids, aromatics and many organic solvents and chemicals. Now we can supply parts made by

Standard FKM compounds are Bisphenol cured. FKM compounds with peroxide-cured possess better acid solution resistance than the bisphenol cured, and can replace litharge-cured applied in acid solution. In Some lubricants adding a few organic amide or amine, choosing peroxide curing system Viton will be better than bisphenol curing system.

FKM can also be submitted for approval to Underwriters Laboratories (UL) for use in applications as prescribed in UL157.FKM has excellent resistance to high temperature, oil, solvent, flame, chemical and weather, and it is usually applied in automotive, chemical processing, aerospace and many industrials. Viton GLT is broadly used in thermal range of -40C to +250C and it has outstanding resistance to aggressive HTS-type oils which are commonly used in aerospace industry.Viton ETP is usually applied in chemical industrial. In some fuels adding several methanol, Viton F and B-type are more usable than A-type especially F-type. If it requires lower temperature, GFLT and GBLT will be available .Viton TBR 605C(TFE/propylene polymer) is better base and steam resistant than other general Vitons. It can be use in amine, amide and some bases.

Viton system gum like general type (A-TYPE, 66% fluorine), middle fluorine content type (B-, GBL-TYPE, 67~68.5% fluorine), high fluorine content type (F-, GF-TYPE,70% fluorine ), improving low temperature flexibility type (GLT-, GFLT) and excellent resistance to more chemicals and solvents-- Viton ETP Extreme.We also can supply excellent acid and alkali resistance parts made by VITON TBR .

Petroleum productsFuel or blend with methanol or ethanolDiesel or blend with biodieselMineral oil and greaseSilicone oil and greaseHigh vacuumOzone, weather and very high temperature airStrong acid

KetonesLow molecular weight organic acids (formic and acetic acids)Superheat steamLow molecular weight esters and ethers.Phosphate ester based hydraulic fluids - Skydrol(R)


General Information





FKM

FKMISO/DIN 1629Designation

Hardness Range

Standard Color(s)

Relative Cost


50 to 90 Shore A

-26C-15F

232C450F

275C525F

-40C-40F

Black

High

HK





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Fluorosilicone Rubber (FVMQ)

Cure system - Peroxide-Cured


Fluorosilicone is like silicone rubber, bonding trifluoropropyl, methyl, and vinyl as side chains. The mechanical and physical properties are similar to VMQ. However, FVMQ offers improved fuel and mineral oil resistance, but poorer hot air resistance then standard VMQ.

Standard FVMQ compounds are peroxide-cured.

FVMQ offers excellent low-temperature flexibility and good resistance to fuel and aromatic mineral oil. It is usually applied in contact with jet and automotive fuels, most solvents, and engine oil especially in aerospace industry.FVMQ compounds meet MIL-R-25988 specification.

FuelsAromatic mineral oils Benzene, TolueneOzone and weather

Brake FluidsKetonesHydrazine


General InformationASTM D1418Designation FVMQ

FVMQISO/DIN 1629Designation


FK

Standard Color(s) Blue

HardnessRange





40 to 85Shore A

-60C-76F

177C350F

-60C-76F

232C450F

Relative Cost High


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Hydrogenated Nitrile Rubber(HNBR)



Acrylonitrile Content

Hydrogenated Nitrile(HNBR) is a synthetic polymer that is obtained by saturating the double bonds in nitrile=s butadiene segments with hydrogen, and it is also called HSN(Highly Saturated Nitrile). This special hydrogenation process reduces lots of double bonds in main chains of NBR polymer, thus HNBR possesses superior heat, ozone, chemical resistance and mechanical characteristics over standard Nitrile.

HNBRs are usually Peroxide-cured for standard compounds of Ge Mao. It also can be Sulfur-cured to improve flexible properties in dynamic system but will reduce the heat resistance and cause poorer compression set.

HNBRs are often internally lubricated to improve ease of installation or reduce friction for dynamic applications.HNBRs can be formulated with only "white list" ingredients as specified in 21.CFR 177.2600 for use in applications where the elastomer will be in contact with food or beverages.HNBRs are usually used in automotive air conditioning system where R134a refrigerant gas or new refrigerant for environment protection like R401a, R404a, R410a, R507 and R744 is used.HNBRs are also used in automotive shaft system because of their excellent abrasion resistance.In deeper oil wells, it requires material resistance to heat, crude oil, hydrogen sulfide, steam and explosive decompressionetc. Special compounds of HNBR can be available for this application.

Same as NBR, there are different levels of Acrylonitrile (ACN) content in different HNBR polymers. The ACN content can be varied from 17% to 49%. Lower ACN content gives better low temperature properties but poorer fuels and polar lubricants. Higher ACN content gives poorer low temperature properties but improves fuels and polar lubricants resistance. Standard HNBRs typically have 36% ACN content.

Petroleum based oils & fuelsAliphatic hydrocarbonsVegetable oilsSilicone oils & greasesEthylene glycolDilute acids, bases & salt solutions to moderate temperaturesWater & steam to 150C ( 300F)

Chlorinated hydrocarbonsKetonesEthersEstersStrong acids


General Information





HNBR

HNBR or NBM


Hardness Range

Standard Color(s)

Relative Cost


50 to 90 Shore A

-40C-40F

150C302F

165C330F

-55C-67F

BlackGreen

High

CH, DF,DH





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Natural Rubber(NR)



Natural rubber is produced from the latex of the Hevea brasiliensis,and the chemical name of this polymer is polyisoprene. Polyisoprene also can be synthesized by polymerization from its monomer isoprene. Natural rubber possesses many excellent physical properties including high resilience and strength and good abrasion resistance. The defects are like SBR, having poor resistance to hydrocarbon oil and not suitable in UV, oxygen, ozone because of the double bond in the polymer backbone. But its poor weathering resistance can be modified by special additive.

Standard NR compounds are sulfur-cured.

NR is usually mixed with SBR and BR and applied in tire productions.

AlcoholsOrganic acids

OzonePetroleum oilsAromatic, aliphatic, or halogenated hydrocarbons


General InformationASTM D1418Designation NR

NRISO/DIN 1629Designation


AA


HardnessRange



40 to 90Shore A

-50C-58F

70C158F

Relative Cost Low


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Nitrile Rubber (NBR)



Acrylonitrile Content

Nitrile rubber, also known as NBR or Buna N, is one of the most commonly used sealing elastomers due its resistance to petroleum based fuels and lubricants and its relatively low price. Nitrile elastomers are copolymers of acrylonitrile and butadiene. There are a number of common variations of nitrile compounds.

Standard Nitriles are usually sulfur-cured. Sulfur-cured compounds offer better low temperature properties but are more prone to hardening with high temperatures. Peroxide-cured nitriles have better heat resistance and lower compression sets but are more expensive and are more difficult to process.

Nitriles are often internally lubricated to improve ease of installation or reduce friction for dynamic applications.Nitriles can be formulated with only "white list " ingredients as specified in 21.CFR 177.2600 for use in applications where the elastomer will be in contact with food or beverages. Nitriles can be submitted for approval by the National Sanitation Foundation (NSF) for use in drinking water applications.Nitriles can also be submitted for approval to Underwriters Laboratories (UL) for use in applications as prescribed in UL157.Nitrile rubber can be combined with polyvinyl chloride (PVC) to create fuel, ozone and weathering resistance NBR-PVC blends.

The acrylonitrile (ACN) content of the polymer chains can be varied from 18% to 50%. Lower ACN content gives better low temperature properties but poorer fuels and polar lubricants. Higher ACN content gives poorer low temperature properties but improved fuels and polar lubricants resistance. Standard NBRs typically have 34% ACN content.

Petroleum based oils & fuelsAliphatic hydrocarbonsVegetable oilsSilicone oils & greasesEthylene glycolDilute acidsWater to below 100C (212F)

Aromatic hydrocarbonsAutomotive brake fluidChlorinated hydrocarbonsKetonesEthersEstersPhosphate ester hydraulic fluidsStrong acidsOzone / weathering / sunlight


General Information






NBR


Hardness Range

Standard Color(s)

Relative Cost



NBR

40 to 90 Shore A

-40C-40F

100C212F

125C275F

-55C-67F

Black

Low

BF, BGBK, CH



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Polyacrylate(ACM, PA)

Cure system - Amine based & metal soaps Cured


Polyacrylates or simply acrylate rubbers are copolymers having two major components: the backbone ( monomeric acid ester of alkyl or alkoxy) and the reactive curesite. ACMs have good resistance to high heat and oil which is better than NBRs. It also well resists oxygen and ozone even at high temperature, but is with poorer water and low temperature flexibility compared to NBRs. Special ACM can improve low temperature flexibility to -40C (TR10 value) without reducing oil and heat resistance.

Standard ACM compounds are Amine based and metal soaps combined to vulcanize.

Polyacrylates usually are applied in automatic industry, especially in automatic transmission and steering fluids.

Mineral oi ls (transmission and steering fluids)Ozone, weather and hot air.

AlcoholAromatics and chlorinated hydrocaebonsHot water and steamAcids, alkalis and aminesBrake fluids


General InformationASTM D1418Designation ACM

ACMISO/DIN 1629Designation


DF, DH,EH


HardnessRange





45 to 80Shore A

-15C5F

150C300F

-40C-40F

175C345F



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Polyurethane(PU, AU, EU)



The millable Polyurethane rubbers are distinguished into two types; one is polyester urethane (AU), the other is polyether urethane (EU). AU type urethanes have outstanding oil, fuel and solvent resistance but can be attacked by hydrolysis, EU type urethanes are not attacked by hydrolysis and still offer a fuel and oil resistance comparable to low ACN ( 18~22% ACN) Nitriles or HNBRs. Any type polyurethane has excellent wear resistance, high tensile strength and high elasticity in comparison with any other elastomers. We also can offer any type thermoplastic urethane (TPU).

Polyurethane usually is applied in mechanical industry, especially in the place where material must have higher wear resistance and higher strength.In some applying environment, moisture condensing will happen on the surface of rubber seal, and this will cause hydrolysis of AU so choosing EU is better. But EU does not resist oil very well, thus higher aniline point oil must be used for lubricant application.Appling in hydraulic system, TPU will be better than millable Polyurethane.

Standard PU compounds are peroxide-cured.

Aliphatic hydrocarbonMineral oil and greaseSilicone oil and greaseOzone Water up to 50C (EU type)

KetonesAlcoholsEstersEthersHot water and steamAlkalis, aminesAcidsGlycols


General Information






AU, EU


Hardness Range

Standard Color(s)

Relative Cost



AU, EU

60 to 93 Shore A

-40C-40F

80C176F

100C212F

-55C-67F

Black

Medium-High

BG


As you know that polyester urethane (AU) exhibits an unique property of easily getting hydrolyzed, GMORS now no longer provides this product line.


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Silicone Rubber (MQ, VMQ, PVMQ)

Cure system - Peroxide-Cured vs. Platinum cured


Physically, silicones are based on silicon, an element derived from quartz. To create this class of synthetic elastomers, pendant organic groups such as methyl, phenyl and vinyl are attached to silicon atoms. The different addition of side chains can achieve significant variations in properties. Silicones have excellent heat, ozone and corona resistance, very well dielectric stability, and resistance to many oils, chemicals, and solvents. And for all elastomers, silicones possess the best flexible property at low temperature. But it also has some weakness like low tensile strength, poor tear and wear resistance.

Standard silicone compounds are usually peroxide-cured. Platinum-cured compounds offer better flexible properties and very low volatile matter. Platinum-cured silicones usually are applied in medical system or other required low volatile matter, but they need to be produced in clean room and higher cost of platinum catalyzer so they are more expensive than peroxide-cured ones.

Silicones can be formulated with only "white list " ingredients as specified in 21.CFR 177.2600 for use in applications where the elastomer will be in contact with food or beverages.Silicones can be submitted for approval by the National Sanitation Foundation (NSF) for use in drinking water applications.Silicones are usually used in automotive system like boots, oil filter valve, gasket in light...etc.Silicone parts can be used in medical system which especially require compliance to USP CLASS VI.

Engine and transmission oil (mineral oils) Diluted salt solutionModerate water Dry heat Ozone, weather resistance

Concentrated acids and alkalisSteam over 120CPetroleum oils and fuelKetones


General InformationASTM D1418Designation

Q, MQ,VMQ,PVMQ,

Q, MQ,VMQ,PVMQ,



FC,FE,GE,

Standard Color(s) Rust

HardnessRange





25 to 90Shore A

-60C-76F

225C437F

-100C-150F

300C572F



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Styrene-Butadiene Rubber(SBR)



The most widely used synthetic rubber in the world is SBR, a copolymer of styrene and butadiene. SBR also was called Buna S (from the first trade name of Bayer). Where SBR rubber is used the most is in tire by blending it with natural rubber and butadiene rubber. SBR is weak and unusable without reinforcement by carbon black, but with carbon black it is strong and abrasionresistant. The defects of SBR are poor resistant to oil and not suitable in weathering, UV, oxygen, ozone because the double bond in the polymer backbone.

SBR is usually mixed with NR and BR and applied in tire productions. SBRs are mostly applied seals for non-mineral oil based brake fluid.

Standard SBR compounds are sulfur-cured.

WaterAlcoholSilicone oil and greaseNon-mineral oil based brake fluidWeak acids

Petroleum oils and fuelsAromatic, aliphatic, or halogenated hydrocarbonsStrong acidsMineral oils


General Information





SBR


Hardness Range

Standard Color(s)

Relative Cost


SBR

50 to 70 Shore A

-55C-67F

100C212F

Black

Low

AA,BA




Service Temperature Range Chart

Oil And Heat Resistance Comparison Chart

This service temperature range is for reference only. In actual service environment, some specific compounds may not reach the maximum temperature as indicated in this chart. However, higher temperature may be attained if exposure is short period or intermittent.

Fluorosilicone

FK

M

HN

BR

PU

(AU

, EU

)

AE

M

AC

M

Silicone

IIR

CR

EP

DM

NB

R

NR

SB

R

XN

BR

EC

O

300

250

200

150

100

50

0

-50

-100

250

225

200

175

150

125

100

75

160 1 40 120 1 00 80 60 40 3 0 20 1 0

Hea

t res

ista

nce

()

Oil resistance (ASTM NO. 3 dilatability)

EPDM

Silicone

AEM

EU

FKM

Fluorosilicone

ACM

ECO

AUIIR

SBR/ NR

CR NBR XNBR

HNBR

Gen

eral

Pro

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last

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Elastomer Guidelines and Recommendations

Gen

eral

Pro

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last

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s

Elastomer Base General RecommendationsDurometer(Shore A)

Butyle(IIR) General ASTM D2000 M2BA710 B13 C12

Carboxylated Nitrile(XNBR)

General ASTM D2000 M2BG714 A14 B14 EO14 EO34 EF11 EF21Internal lubrication (PTFE, Molysulfide, Erucamide)

General ASTM D2000 M3CA710 A25 B35 EA14 G11General ASTM D2000 M3DA710 A26 B36 C32 EA14 F19 G21 Z1=PeroxideInternal LubricantFDA 21 CRF177.2600 Class II spec.NSF61 approval.Peroxide Cured, Electric insulationGeneral, ANTI-MICROBEPeroxide Cured, Coolant SystemPeroxide Cured, Brake SystemHFC-134A Plus PAG or POE Lubricant

General ASTM D2000 M2HK810 A1-10 B38 EF31 EO78 Z1=75+/- SHORE A.General ASTM D2000 M2HK910 A1-10 B38 EF31 EO78 EO88FDA 21 CFR 177.2600Internal Lubricant (PTFE, MOS2)AMS 7276, Mil-R-83248 Low Compression SetViton GFLT for Chrysler MS-BZ832 Grade F.Viton F-type for Ford WSA-M2D401-A8Viton GLT-type for Chrysler MS-BZ832 grade GViton GF-type for Chrysler MS-BZ832 grade CViton B-type for Chrysler MS-BZ832 grade BGeneral meet F15 Low TemperatureAnti Explosive Decompression (AED)GLT AMS-R-83485(Low Compression Set and Low Temperature)

Chloroprene Rubber(CR)

General ASTM M3BC710 A14 B14 EO14 EO34 F17Electrical insulation 500v, 100m For UL94-V1 application

Epichlorohydrin(CO, ECO, GECO)

General M3CH710

Ethylene Propylene Rubber(EPR, EPDM)

Ethylene/ Acrylielastomer(AEM, VAMAC)

General ASTM D2000 M3EE710 A47 B46 EO16 EO36 F16E1:ATF Dexron lll and l

70

70

7070

7070707070707070707075

7590757575757575757575759575

705760

70

Fluorocarbon(FPM, VITON, FKM)



Elastomer Guidelines and Recommendations

Gen

eral

Pro

pert

ies

of E

last

omer

s

Elastomer Base General RecommendationsDurometer(Shore A)

ETP Viton ETP-type excellent oil, heat, chemical, solvent resistance

Fluorosilicone Rubber(FVMQ)

Hydrogenated NitrileRubber (HNBR, HSN)

Natural Rubber(NR)

Nitrile Rubber(NBR, BUNA-N)

Polyacrylate(ACM, PA)

Polyurethane(PU, AU, EU)

Silicone Rubber(MQ, VMQ, PVMQ)

Styrene-Butadiene Rubber(SBR)

M25988/3 Type 1, Class 1, Grade 60M25988/1 Type 1, Class 1, Grade 70M25988/2 Type 1, Class 3, Grade 75M25988/4 Type 1, Class 1, Grade 80

General ASTM D2000 M2DH710 A26 B16 EO16 Eo36 F17 Z1=Green colorFord WSH-M2D463-AFDA 21 CRF177.2600 Class II spec.Good fuel resistance and for adhesion metal seal.New Refrigerant for Environment Protection and HFC-134A

General ASTM D2000 M2AA710General ASTM D2000 M2AA410

General ASTM D2000 M2BG714 A14 B34 EA14 Ef11 EF21 EO14 EO34FDA 21 CFR177.2600 Class I40% Acn. Good fuel resistance.Internal lubricant (PTFE, Molysulfide, Wax)NBR/PVC blending, excellent ozone resistance, good fuel resistance.Higher heat resistance (M2CH714 A25 Eo15 EO35)18% Acn. Excellent low temperature resistance (-55C)NSF61 approval.Insulation, resist to 2kvNon-nitosamine

General ASTM D2000 M2DH710 A26 B16 EO16 EO36 F13Improve low temperature flexibility

Ether type-excellent water resistance, Ester type-excellent oil resistance.Ether type-excellent water resistance, Ester type-excellent oil resistance.

General ASTM D2000 M2GE705 A19 B37 C12 Ea14 EO16 EO36 F19Meet FDA 21 CFR177.2600 Class ll spec./NSF61 approval.ZZ-RP765E/ GEN,AMS 3340High heat resistance, service temperature -55C~ +300C Improve oil resistanceUSP Class VIUL 94-vo approval

General ASTM D2000 M2AA708

75

60707580

7070707080

7040

70707070707070706070

7070

7090

70707070707060

70


www.gmors.com 22

Gen

eral

Pro

pert

ies

of E

last

omer

s

Fluid Compatibility Table

COMPATIBILITY RATING SATISFACTORY FAIR(USUALLY OK FOR STATIC SEAL)

DOUBTFUL(SOMETIMES OK FOR STATIC SEAL)

UNSATISFACTORY INSUFFICIENT DATA




ACETAMIDEACETAMIDEACETIC ACID,GLACIAL HOT,HIGH PRESS 5%ACETONEACETOPHENONEACETYLENEAMMONIA,GAS,COLD GAS,HOT LIQUID(ANHYDROUS)AMMONIUM HYDROXIDE, 3 MOLAR CONCENTRATEDAMYL ACETATEANDEROL,L-774(DI-ESTER)ANTIFREEZEANILINEANSUL ETHER 161 OR 181AROCLOR,1248 1254 1260ASKARELASTM OIL NO.1 NO.3ASTM REDERENCE FUEL A B C DAUTO. TRANSMISSION FLUIDBEERBENZALDEHYDEBENZENEBENZINEBENZOIC ACIDBENZOPHENONEBENZYL ALCOHOLBLEACH LIQUORBORAXBORIC ACIDBRAKE FLUID(NON-PETROLEUM)BROMINEBROMOBENZENEBUNKER OILBUTANEBUTTER-ANIMAL FATN-BUTYL ACETATE

BUTYL ALCOHOLBUTYL AMINE OF N-BUT AMINEBUTYL CARBITOLBUTYL CELLOSOLVEBUTYRALDEHYDCARBITOLCARBITOL ACETATECARBON DISULFIDECARBON TETRACHLORIDECARBONIC ACIDCASTOR OILCELLOSOLVECHASSIS GREASECHLORACETIC ACIDCHLORACETONECHLORODANECHLORINE,DRYCHLORINE DIOXIDE CHLORINE DIOXIDE,8% CL AS NAC10 IN SOLUTION CHLORINE TRIFLUORIDECHLORINE,WETCHLOROBENZOLCHLOROFORMCHLOROSULPHONIC ACIDCHROME PLATING SOLUTIONSCHROMIC ACID,50%CITRIC ACIDCOD LIVER OILCOFFEECORN OILCREOSOTE,COAL TARCREOSOTE OILCREOSYLIC ACIDCRUDE OILCYCLOHEXANECYCLOHEXNOLDECALINDENATURED ALCOHOLDIACETONEDIBUTYLAMINEDIBUTYL PHTHALATEDICHLORO ANILINEDICHLORO BUTANEDIESEL OILDIETHYLAMINEDIETHYL BENZENE

NIT

RIL

E(N

BR

)

NIT

RIL

E(N

BR

)

EP

DM

EP

DM

FLU

OR

OC

AR

BO

N(V

ITO

N)

FLU

OR

OC

AR

BO

N(V

ITO

N)

NE

OP

RE

NE

NE

OP

RE

NE

PO

LYA

CR

YLA

TE

PO

LYA

CR

YLA

TE

FLU

OR

OS

ILIC

ON

E

FLU

OR

OS

ILIC

ON

E

SIL

ICO

NE

SIL

ICO

NE




Gen

eral

Pro

pert

ies

of E

last

omer

s








DIETHYLENE GLYCOLDIMETHYL ETHERDIMETHYL FORMAMIDEDIMETHYL PHTHALATEDIMETHYL TEREPHTHALATEDIOCTYL PHTHALATEDIOXANEDIPHENYLDOW CORNING-550DOW GUARDDOWTHERM,A EELCO 28-EP LUBRICANTEPOXY RESINSETHANEETHANOLETHANOL AMINEETHYL ACETATE-ORGANIC ESTERETHYL BENZENEETHYL CELLULOSEETHYL CHLORIDEETHYL ETHERETHYL FORMATEETHYL HHEXANOLETHYL MERCAPTANETHYLENE CHLORIDEETHYLENE OXIDEFORMALDEHYDEFORMIC ACIDFREON 12FUEL OILFURAN(FURFURAN)FURFURALFURFURYL ALCOHOLFYRQUEL A60GALLIC ACIDGASOLINEGELATINGLUCOSEGLYCERINE-GL YCEROLN-HEPTANEN-HEXALDEHYDEN-HEXANEHEXANOLHOME HEATING OIL

HYDRAZINEHYDROCHLORIC ACID, 3 MOLAR CONCENTRATEDHYDROCYANIC ACIDHYDROGEN PEROXIDE 90%HTDROGEN SULFIDE DRY,COLD DRY,HOT WET,COLD WET,HOTHYDROQUINONEHYPOID GEAR LUBEIODINEISOCYANATEISO OCTANEISOPHORONE(KETONE)ISOPARISOPROPANOLISOPROPYL ACETATEJP-4(MIL-J-5624)JP-5(MIL-J-5624)KEROSINELACTIC ACID,COLD HOTLACQUERSLARD,ANIMAL FATLINOLEIC ACIDLINSEED OILLYE SOLUTIONSMALATHIONMALEIC ACIDMERCURYMETER-CRESOLMETHANEMETHANOLMETHYL ACETATEMETHYLACRYLIC ACIDMETHYL CELLOSOLVEMETHYL CHLORIDEMETHYL ETHYL KETONE(MEK)MRTHYL MERCAPTANMILKMINERAL OILSMINERAL SPIRITSMONOVINYL ACETYLENE

NIT

RIL

E(N

BR

)

NIT

RIL

E(N

BR

)

EP

DM

EP

DM

FLU

OR

OC

AR

BO

N(V

ITO

N)

FLU

OR

OC

AR

BO

N(V

ITO

N)

NE

OP

RE

NE

NE

OP

RE

NE

PO

LYA

CR

YLA

TE

PO

LYA

CR

YLA

TE

FLU

OR

OS

ILIC

ON

E

FLU

OR

OS

ILIC

ON

E

SIL

ICO

NE

SIL

ICO

NE


www.gmors.com 24

1 1 1 1 1 1 32 1 1 1 1 1 11 4 1 4 x 1 x4 1 1 4 4 x 44 1 4 4 4 3 32 1 2 2 4 2 11 4 1 2 2 1 42 4 1 2 2 1 41 3 1 3 1 1 12 2 x 2 x x 21 4 1 2 1 1 41 1 1 2 4 1 1

4 2 1 3 2 3 44 4 1 4 4 4 41 4 1 2 1 x x1 1 1 2 4 x 21 1 1 1 4 1 22 4 1 3 4 1 21 2 1 2 x 1 14 4 1 4 4 2 x4 4 1 4 x 1 41 4 1 2 1 1 21 4 1 2 1 1 44 4 1 4 4 2 43 4 1 4 4 2 43 2 4 2 4 4 x1 4 1 4 1 1 41 4 1 4 2 2 41 1 1 1 x x 11 4 1 1 1 x 42 4 1 4 4 2 42 1 1 2 4 3 11 1 2 2 4 1 11 4 1 2 1 x 11 1 1 1 4 1 11 4 1 2 x 2 4G

ener

al P

rope

rtie

sof

Ela

stom

ers


MUSTARDNAPHTHANAPHTHALENENAPHTHENIC ACIDNAYURAL GASNEATSFOOT OILNITRIC ACID 3 MOLAR CONCENTRATED RED FUMING(RFNA)INHIBITED RED FUMING(IRENA)NITROBENZENENITROPROPANEN-OCTANEOCTANOLOLEIC ACIDOLEUM(FUMING SULFURIC ACID)ORONITE 8200OXALIC ACIDPEANUT OIL PENTANE, 2 METHYL 2-4,DIMETHYL 3-METHYLPERCHLOROETHYLENEPETROLEUM ETHERPHENOLPHENYLHYDRAZINEPHOSPHORIC ACID 3 MOLAR CONCENTRATEDPINE OILPOTASSIUM HYDROXIDE,50%PROPANEPROPANOLPROPYL ACETATEPYDRAUL 10E,29ELT 30E,50E,65E,90E 115E 230E,312C,540CPYRANOLPYRIDINERAPESEED OILSAE10W30SEA(SALT) WATER

SILICONE GREASESSILVER NITRATESKELLY,SOLVENT B,C,ESKYDROLSKYDROL 500SODIUM HYDROXIDE,3 MOLARSOVASOL NO.1,2 AND 3 NO.73 AND 74SOYBEAN OILSTEARIC ACIDSTODDARD SOLVENTSUCROSE SOLUTIONSSULFURIC ACID 3 MOLAR CONCENTRATEDTALL OILTANNIC ACID 10%TAR,BITUMINOUSTARTARIC ACIDTETRACHOROETHANETETRALINTIDEWATER OIL-BEEDOL MULTIGEAR 140,EP LUBETOLUENETRICHLOROETHYLENETRIETHANOL AMINETURBINE OILTURPENTINEUCDN 50HB 280XUNIVIS J-43VARNISHVINEGARWATERWHEAT GERM OILWHISKEY AND WINESWOOD OIL







UNSATISFACTORY INSUFFICIENT DATANI

TRIL

E(N

BR

)

NIT

RIL

E(N

BR

)

EP

DM

EP

DM

FLU

OR

OC

AR

BO

N(V

ITO

N)

FLU

OR

OC

AR

BO

N(V

ITO

N)

NE

OP

RE

NE

NE

OP

RE

NE

PO

LYA

CR

YLA

TE

PO

LYA

CR

YLA

TE

FLU

OR

OS

ILIC

ON

E

FLU

OR

OS

ILIC

ON

E

SIL

ICO

NE

SIL

ICO

NE



Design Data: Extrusion Limit of O-ring & Clearance Gap


O-R

ing

Des

ign

Ref

eren

ce

The O-ring is contained in the gland and forced to flow into the surface imperfections of the glands and any clearance gap available to it. So, O-ring can perform sealing by means of squeeze under low-pressure conditions. However, as the pressure mounts, it becomes distorted. The distortion increases the strain, and the increased strain results in more tight sealing. Under high pressure, O-ring would extrude out of the clearance gap. The extrusion will cause seal failure in a standard gland configuration.

An antiextrusion back-up ring, made of a tough, cut-resistant material such as leather, Teflon or hard rubber, is suggested. In static applications it may be possible to modify the gland design to withstand the higher pressure without the addition of a back-up ring. Anyway, care must be taken to make the extrusion as small as possible. The extent of this extrusion depends upon the hardness of O-r ing, pressure and clearance gap. Please refer to FIG 1, FIG 2 and TABLE 1.

FIG. 1

PRESSURE

LOW PRESSURE 1000 PSI 1500 PSI

CLEARANCEGAP

PRESSURE EXTRUSION

DIAMETRAL CLEARANCE (INCH)

FL

UID

PR

ES

SU

RE

(PS

I)

10000

8000

6000

5000

4000

3000

20001500

1000

800

600

500

400

300

200

1000.008 0.016

70 80 90

0.024 0.032

O-RING EXTRUSIONWITHOUT BACK-UP RINGS

NO EXTRUSION

FIG.2: EXTRUSION LIMIT OF O-RIN G

HARDNESS, SHORE A

Table 1: Limit of the Diametral Clearance (Unit: Inch) Against Fluid Pressure

EXTRUSION HAPPENS BEYOND THE LIMIT OF DIAMETRAL CLEARANCE AGAINST FLUID PRESSURE.

PRESSURE (PSI) HARDNESS

SHORE AUP TO 500 500-1000 1000-1500 1500-2000 2000-3000

0.0160.028

7090

0.0100.024

0.0060.020

0.0040.016

0.0020.010


www.gmors.com 26

O-Ring Design ReferenceO

-Rin

g D

esig

n R

efer

ence

Static O-ring Sealing- Industrial Static Seal Glands

Break ComersApprox, ,005 RAD.

GrooveDepth

Gland Detail

32

63

63

1/2 E

F

G

L

(e)0to 5(Typ.)

32

W W

W

.005Typ.

.003 Typ.

Pressure

NoBack-up

Ring

OneBack-up

Ring

G G1

Section W-W

W

I.D.

Pressure

TwoBack-up

Ring

G2

Pressure

Male Gland Female Gland

1/2 E1/2 E

B Dia.B-1 Dia.C Dia.A Dia.

D Dia.A-1 Dia.

(A-1 Max. =B Min. +2L Max.)

(B-1 Min. =A Max. -2L Max.)

Design- For Industrial O-Ring Static Seal Glands

O-RingSize

AS568A-

LGlandDepth

SpueezeG-Groove Width

No Back-up Ring(G)

One Back-up Ring(G1)

Two Back-up Ring(G2)

.050to

.052

.015to

.023

.111to

.113

.022to

.032

.081to

.083

.017to

.025

.170to

.173

.032to

.045

.226to

.229

E(a)DiametralClearance

RGrooveRadius

MaxEccen-tricity(b)

.002to

.005

.093to

.098

.138to

.143

.205to

.210

.005to

.015

.003to

.006

.187to

.192

.208to

.213

.275to

.280

.010to

.025

.002to

.005

.140to

.145

.171to

.176

.238to

.243

.005to

.015

.003to

.006

.281to

.286

.311to

.316

.410to

.415

.020to

.035

.004to

.007

.375to

.380

.408to

.413

.538to

.543

.020to

.035

.002

.003

.002

.004

.005.040to

.055

22to32

16to23

17to24

15to21

15to20

WCross-Section

Nominal

1/16

3/32

1/8

3/16

1/4

Actual Actual %

.070.003

.103.003

.139.004

.210.005

.275.006

006through

012

014through

116

201through

222

309through

349

425through

460

(a) Clearance (extrusion gap) must be held to a minimum consistent with design requirements for temperature range variation. (b) Total indicator reading between groove and adjacent bearing surface.(c) Reduce maximum diametral clearance 50% when using silicone or fluorosilicone O-rings.

(d) For ease of assembly, when Back-up Ring are used, gland depth may be increased up to 5%.



Static O-ring Sealing- Face Seal Glands

O-R

ing

Des

ign

Ref

eren

ce


L

GrooveDepth(= Gland Depth)

Gland Detail

Surface finish X:32 for liquids16 for vacuumand gases

X

R63

63

G

L

0to 5(Typ.)

32

W W

W

.005 Max.

.003 Max.

Section W-W

W

I.D.

For Internal Pressure(outward pressure direction)dimension the groove by itsoutside diameter (H ) and width:o

For Extemal Pressure(inward pressure direction)dimension the groove by itsinside diameter (H ) and width:i

(H )=Mean O.D. of O-ringTolerance=Minus 1% of MeanO.D., bot not more then-.060

o

(H )=Mean O.D. of O-ringTolerance=Plus 1% of MeanO.D., bot not more then+.060

i

Design- For Industrial O-Ring Static Seal Glands

O-RingSize

AS568A-

LGlandDepth

Spueeze G-Groove Width

Liquids Vacuumand Gases

.050to

.054

.013to

.023

.101to

.107

.028to

.042

.074to

.080

.020to

.032

.152to

.162

.043to

.063

.276to

.286

.370to

.380

.201to

.211

RGrooveRadius

.101to

.107

.084to

.089

.005to

.015

.177to

.187

.158to

.164

.010to

.025

.136to

.142

.120to

.125

.005to

.015

.270to

.290

.239to

.244

.020to

.035

.475to

.485

.638to

645

.342to

.362.419to

.424

.560to

565

.309to

.314.030

to.045

.030to

.040

.020to

.035.082to

.108

.112to

.138

.058to

.080

19to32

20to30

20to30

21to30

22to28

22to27

21to29

WCross-Section

Nominal

1/16

3/32

1/8

3/16

1/4

3/8

1/2

Actual Actual %

.070.003

.103.003

.139.004

.210.005

.275.006

.500.008

.275.006

004through

050

102through

178

201through

284

309through

395425

through475

special

special

These dimensions are intended primarily for face type O-ring seals and low temperature applications


www.gmors.com 28

O-R

ing

Des

ign

Ref

eren

ce

Static O-ring Sealing- Industrial Static Seal Glands

Design- For Static Vacuum Seal Glands

O-RingSize

AS568A-

LGlandDepth

ESpueeze

GGroove Width

.050to

.052

.015to

.023

.111to

.113

.022to

.032

.081to

.083

.017to

.025

.170to

.173

.032to

.045

.226to

.229

DiametralClearance

RGrooveRadius

Max*Eccen-tricity(b)

.002to

.005

.093to

.098

.005to

.015

.003to

.006

.187to

.192

.010to

.025

.002to

.005

.140to

.145

.005to

.015

.003to

.006

.281to

.286

.020to

.035

.004to

.007

.375to

.380

.020to

.035

.002

.003

.002

.004

.005.040to

.055

22to32

16to23

17to24

15to21

15to20

WCross-Section

Nominal

1/16

3/32

1/8

3/16

1/4

Actual Actual %

.070.003

.103.003

.139.004

.210.005

.275.006

004through

050

102through

178

201through

284

309through

395

425through

475

*Total indicator reading between groove and adjacent bearing surface.

Male Gland Female Gland

1/2 E1/2 E

W

.005 Typ.

.003 Typ.

Section W-W


GrooveDepth

F GrooveDepth (Ret.)

Gland Detail

32

R32

32

1/2 E

F

G

L

0to 5(Typ.)

16

CS

CSCS

ID






AS 568ASIZE

NOMINAL (REF.)MEASUREMENTS IN

INCHES

STANDARD O-RINGMEASUREMENTS IN

INCHES

METRIC O-RINGMEASUREMENTS IN

MILLIMETERS

ID ID IDOD CS CS CSA0001A0002A0003A0004A0005A0006A0007A0008A0009A0010A0011A0012A0013A0014A0015A0016A0017A0018A0019A0020A0021A0022A0023A0024A0025A0026A0027A0028A0029A0030A0031A0032A0033A0034A0035A0036A0037A0038A0039A0040A0041A0042A0043A0044A0045

1/32 3/64 1/16 5/64 3/32 1/ 8 5/32 3/16 7/32 1/ 4 5/16 3/ 8 7/16 1/ 2 9/16 5/ 8 11/16 3/ 4 13/16 7/ 8 15/161 1 1/161 1/ 81 3/161 1/ 41 5/161 3/ 81 1/ 21 5/ 81 3/ 41 7/ 82 2 1/ 82 1/ 42 3/ 82 1/ 22 5/ 82 3/ 42 7/ 83 3 1/ 43 1/ 23 3/ 44

3/32 9/64 3/16 13/64 7/32 1/ 4 9/32 5/16 11/32 3/ 8 7/16 1/ 2 9/16 5/ 8 11/16 3/ 4 13/16 7/ 8 15/161 1 1/16 1/ 81 3/161 1/ 41 5/161 3/ 81 7/161 1/ 21 5/ 81 3/ 41 7/ 82 2 1/ 82 1/ 42 3/ 82 1/ 22 5/ 82 3/ 42 7/ 83 3 1/ 83 3/ 83 5/ 83 7/ 84 1/ 8

1/32 3/64 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16

0.0290.0420.0560.0700.1010.1140.1450.1760.2080.2390.3010.3640.4260.4890.5510.6140.6760.7390.8010.8640.9260.9891.0511.1141.1761.2391.3011.3641.4891.6141.7391.8641.9892.1142.2392.3642.4892.6142.7392.8642.9893.2393.4893.7393.989

0.0040.0040.0040.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0070.0090.0090.0090.0090.0090.0090.0100.0100.0100.0110.0110.0110.0130.0130.0130.0150.0150.0180.0180.0180.0180.0180.0200.0200.0200.0240.0240.0240.0270.027

0.0400.0500.0600.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.070

0.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.003

0.741.071.421.782.572.903.684.475.286.077.659.2510.8212.4214.0015.6017.1718.7720.3521.9523.5225.1226.7028.3029.8731.4733.0534.6537.8241.0044.1747.3550.5253.7056.8760.0563.2266.4069.5772.7575.9282.2788.6294.97101.32

0.100.100.100.130.130.130.130.130.130.130.130.130.130.130.180.230.230.230.230.230.230.250.250.250.280.280.280.330.330.330.380.380.460.460.460.460.460.510.510.510.610.610.610.690.69

1.021.271.521.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.78

0.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.08

O-R

ing

Stan

dard

Size

(AS

568A

)

www.gmors.com 30

O-Ring Standard Size (AS 568A)O

-Rin

g St

anda

rdSi

ze (A

S 56

8A)


AS 568ASIZE


INCHES


INCHES


MILLIMETERS


4 1/ 44 1/ 24 3/ 45 5 1/ 4 1/16 3/32 1/ 8 5/32 3/16 7/32 1/ 4 5/16 3/ 8 7/16 1/ 2 9/16 5/ 8 11/16 3/ 4 13/16 7/ 8 15/161 1 1/161 1/ 81 3/161 1/ 41 5/161 3/ 81 7/161 1/ 21 9/161 5/ 81 11/161 3/ 41 13/161 7/ 81 15/162 2 1/162 1/ 82 3/162 1/ 42 5/16

4 3/ 84 3/ 84 7/ 85 1/ 85 3/ 8 1/ 4 9/32 5/16 11/32 3/ 8 13/32 7/16 1/ 2 9/16 5/ 8 11/16 3/ 4 13/16 7/ 8 15/161 1 1/161 1/ 81 3/161 1/ 41 5/161 3/ 81 7/161 1/ 21 9/161 5/ 81 11/161 3/ 41 13/161 7/ 81 15/162 2 1/162 1/ 82 3/162 1/ 42 5/162 3/ 82 7/162 1/ 2

1/16 1/16 1/16 1/16 1/16 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32

4.2394.4894.7394.9895.2390.0490.0810.1120.1430.1740.2060.2370.2990.3620.4240.4870.5490.6120.6740.7370.7990.8620.9240.9871.0491.1121.1741.2371.2991.3621.4241.4871.5491.6121.6741.7371.7991.8621.9251.9872.0502.1122.1752.2372.300

0.0300.0300.0300.0370.0370.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0070.0090.0090.0090.0100.0100.0100.0100.0100.0100.0120.0120.0120.0120.0120.0120.0150.0150.0150.0150.0150.0150.0170.0170.0170.0170.0170.0170.020

0.0700.0700.0700.0700.0700.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.103

0.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.003

107.67114.02120.37126.72133.071.242.062.843.634.425.236.027.599.1910.7712.3713.9415.5417.1218.7220.2921.8923.4725.0726.6428.2429.8231.4232.9934.5936.1737.7739.3440.9442.5244.1245.6947.2948.9050.4752.0753.6455.2556.8258.42

0.760.760.760.940.940.130.130.130.130.130.130.130.130.130.130.130.180.230.230.230.250.250.250.250.250.250.300.300.300.300.300.300.380.380.380.380.380.380.430.430.430.430.430.430.51

1.781.781.781.781.782.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.62

0.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.08


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2 9/162 5/ 82 11/162 3/ 42 13/162 7/ 82 15/163 3 1/163 3/163 7/163 11/163 15/164 3/164 7/164 11/164 15/165 3/165 7/165 11/165 15/166 3/166 7/166 11/166 15/167 3/167 7/167 11/167 15/168 3/168 7/168 11/168 15/169 3/169 7/169 11/169 15/16 7/16 1/ 2 9/16 5/ 8 11/16 3/ 4 13/16 7/ 8

3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8

2.3622.4252.4872.5502.6122.6752.7372.8002.8622.9873.2373.4873.7373.9874.2374.4874.7374.9875.2375.4875.7375.9876.2376.4876.7376.9877.2377.4877.7377.9878.2378.4878.7378.9879.2379.4879.7370.1710.2340.2960.3590.4210.4840.5460.609

0.0200.0200.0200.0200.0200.0220.0220.0220.0220.0240.0240.0240.0280.0280.0300.0300.0300.0350.0350.0350.0350.0350.0400.0400.0400.0400.0450.0450.0450.0450.0500.0500.0500.0500.0550.0550.0550.0050.0050.0050.0050.0050.0050.0070.009

0.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1390.1390.1390.1390.1390.1390.1390.139

0.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0040.0040.0040.0040.0040.0040.0040.004

59.9961.6063.1764.7766.3467.9569.5271.1272.6975.8782.2288.5794.92101.27107.62113.97120.32126.67133.02139.37145.72152.07158.42164.77171.12177.47183.82190.17196.52202.87209.22215.57221.92228.27234.62240.97247.324.345.947.529.1210.6912.2913.8715.47

0.510.510.510.510.510.560.560.560.560.610.610.610.710.710.760.760.760.890.890.890.890.891.021.021.021.021.141.141.141.141.271.271.271.271.401.401.400.130.130.130.130.130.130.180.23

2.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.623.533.533.533.533.533.533.533.53

0.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.100.100.100.100.100.100.100.10

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15/161 1 1/161 1/ 81 3/161 1/ 41 5/161 3/ 81 7/161 1/ 21 9/161 5/ 81 11/161 3/ 41 7/ 82 2 1/ 82 1/ 42 3/ 82 1/ 22 5/ 82 3/ 42 7/ 83 3 1/ 83 1/ 43 3/ 83 1/ 23 5/ 83 3/ 43 7/ 84 4 1/ 84 1/ 44 3/ 84 1/ 24 5/ 84 3/ 44 7/ 85 5 1/ 85 1/ 45 3/ 85 1/ 25 5/ 8

1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8

0.6710.7340.7960.8590.9210.9841.0461.1091.1711.2341.2961.3591.4211.4841.6091.7341.8591.9842.1092.2342.3592.4842.6092.7342.8592.9843.1093.2343.3593.4843.6093.7343.8593.9844.1094.2344.3594.4844.6094.7344.8594.9845.1095.2345.359

0.0090.0100.0100.0100.0100.0100.0100.0120.0120.0120.0120.0120.0120.0150.0150.0150.0180.0180.0180.0200.0200.0200.0200.0240.0240.0240.0240.0240.0240.0240.0280.0280.0280.0280.0280.0300.0300.0300.0300.0300.0350.0350.0350.0350.035

0.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.139

0.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.004

17.0418.6420.2221.8223.3924.9926.5728.1729.7431.3432.9234.5236.0937.6940.8744.0447.2250.3953.5756.7459.9263.0966.2769.4472.6275.79 78.97 82.14 85.32 88.49 91.67 94.84 98.02 101.19 104.37 107.54 110.72 113.89 117.07 120.24 123.42 126.59 129.77 132.94 136.12

0.230.250.250.250.250.250.250.300.300.300.300.300.300.380.380.380.460.460.460.510.510.510.510.610.610.61 0.61 0.61 0.61 0.61 0.71 0.71 0.71 0.71 0.71 0.76 0.76 0.76 0.76 0.76 0.89 0.89 0.89 0.89 0.89

3.533.533.533.533.533.533.533.533.533.533.533.533.533.533.533.533.533.533.533.533.533.533.533.533.533.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53

0.100.100.100.100.100.100.100.100.100.100.100.100.100.100.100.100.100.100.100.100.100.100.100.100.100.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10



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5 1/ 25 5/ 85 3/ 45 7/ 86 6 1/ 46 1/ 26 3/ 47 7 1/ 47 1/ 27 3/ 48 8 1/ 48 1/ 28 3/ 49 9 1/ 49 1/ 29 3/ 410 10 1/ 211 11 1/ 212 13 14 15 16 17 18 7/16 1/ 2 9/16 5/ 8 11/16 3/ 4 13/16 7/ 8 15/161 1 1/161 1/ 81 3/161 1/ 4

5 3/ 45 7/ 86 6 1/ 86 1/ 46 1/ 26 3/ 47 7 1/ 47 1/ 27 3/ 48 8 1/ 48 1/ 28 3/ 49 9 1/ 49 1/ 29 3/ 410 10 1/ 410 3/ 411 1/ 411 3/ 412 1/ 413 1/ 414 1/ 415 1/ 416 1/ 417 1/ 418 1/ 4 13/16 7/ 8 15/161 1 1/161 1/ 81 3/161 1/ 41 5/161 3/ 81 7/161 1/ 21 9/161 5/ 8

1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16

5.4845.6095.7345.8595.9846.2346.4846.7346.9847.2347.4847.7347.9848.2348.4848.7348.9849.2349.4849.7349.98410.48410.98411.48411.98412.98413.98414.98415.95516.95517.9550.4120.4750.5370.6000.6620.7250.7870.8500.9120.9751.0371.1001.1621.225

0.0350.0350.0350.0350.0350.0400.0400.0400.0400.0450.0450.0450.0450.0500.0500.0500.0500.0550.0550.0550.0550.0550.0650.0650.0650.0650.0650.0650.0750.0800.0850.0050.0050.0070.0090.0090.0100.0100.0100.0100.0100.0100.0120.0120.012

0.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.210

0.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.005

139.29 142.47 145.64 148.82 151.99 158.34 164.69 171.04 177.39 183.74 190.09 196.44 202.79 209.14 215.49 221.84 228.19 234.54 240.89 247.24 253.59 266.29 278.99 291.69 304.39 329.79 355.19 380.59 405.26 430.66 456.06 10.46 12.07 13.64 15.24 16.81 18.42 19.99 21.59 23.16 24.77 26.34 27.94 29.51 31.12

0.89 0.89 0.89 0.89 0.89 1.02 1.02 1.02 1.02 1.14 1.14 1.14 1.14 1.27 1.27 1.27 1.27 1.40 1.40 1.40 1.40 1.40 1.65 1.65 1.65 1.65 1.65 1.65 1.91 2.03 2.16 0.13 0.13 0.18 0.23 0.23 0.25 0.25 0.25 0.25 0.25 0.25 0.30 0.30 0.30

3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33

0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13

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1 5/161 3/ 81 1/ 21 5/ 81 3/ 41 7/ 82 2 1/ 82 1/ 42 3/ 82 1/ 22 5/ 82 3/ 42 7/ 83 3 1/ 83 1/ 43 3/ 83 1/ 23 5/ 83 3/ 43 7/ 84 4 1/ 84 1/ 44 3/ 84 1/ 24 5/ 84 3/ 44 7/ 85 5 1/ 85 1/ 45 3/ 85 1/ 25 5/ 85 3/ 45 7/ 86 6 1/ 46 1/ 26 3/ 47 7 1/ 47 1/ 2

1 11/161 3/ 41 7/ 82 2 1/ 82 1/ 42 3/ 82 1/ 22 5/ 82 3/ 42 7/ 83 3 1/ 83 1/ 43 3/ 83 1/ 23 5/ 83 3/ 43 7/ 84 4 1/ 84 1/ 44 3/ 84 1/ 24 5/ 84 3/ 44 7/ 85 5 1/ 85 1/ 45 3/ 85 1/ 25 5/ 85 3/ 45 7/ 86 6 1/ 86 1/ 46 3/ 86 5/ 86 7/ 87 1/ 87 3/ 87 5/ 87 7/ 8

3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16

1.2871.3501.4751.6001.7251.8501.9752.1002.2252.3502.4752.6002.7252.8502.9753.1003.2253.3503.4753.6003.7253.8503.9754.1004.2254.3504.4754.6004.7254.8504.9755.1005.2255.3505.4755.6005.7255.8505.9756.2256.4756.7256.9757.2257.475

0.0120.0120.0150.0150.0150.0150.0180.0180.0180.0180.0200.0200.0200.0200.0240.0240.0240.0240.0240.0280.0280.0280.0280.0280.0300.0300.0300.0300.0300.0300.0370.0370.0370.0370.0370.0370.0370.0370.0370.0400.0400.0400.0400.0450.045

0.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.210

0.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.005

32.69 34.29 37.47 40.64 43.82 46.99 50.17 53.34 56.52 59.69 62.87 66.04 69.22 72.39 75.57 78.74 81.92 85.09 88.27 91.44 94.62 97.79

100.97 104.14 107.32 110.49 113.67 116.84 120.02 123.19 126.37 129.54 132.72 135.89 139.07 142.24 145.42 148.59 151.77 158.12 164.47 170.82 177.17 183.52 189.87

0.30 0.30 0.38 0.38 0.38 0.38 0.46 0.46 0.46 0.46 0.51 0.51 0.51 0.51 0.61 0.61 0.61 0.61 0.61 0.71 0.71 0.71 0.71 0.71 0.76 0.76 0.76 0.76 0.76 0.76 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 1.02 1.02 1.02 1.02 1.14 1.14

5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33

0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13



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MILLIMETERS


7 3/ 48 8 1/ 48 1/ 28 3/ 49 9 1/ 49 1/ 29 3/ 410 10 1/ 211 11 1/ 212 13 14 15 16 17 18 19 20 21 22 23 24 25 26 1 3/81 1/21 5/81 3/41 7/822 1/82 1/42 3/82 1/22 5/82 3/42 7/833 1/83 1/43 3/8

8 1/ 88 3/ 88 5/ 88 7/ 89 1/ 89 3/ 89 5/ 89 7/ 810 1/ 810 3/ 810 7/ 811 3/ 811 7/ 812 3/ 813 3/ 814 3/ 815 3/ 816 3/ 817 3/ 818 3/ 819 3/ 820 3/ 821 3/ 822 3/ 823 3/ 824 3/ 825 3/ 826 3/ 81 7/822 1/82 1/42 3/82 1/22 5/82 3/42 7/833 1/83 1/43 3/83 1/23 5/83 3/43 7/8

3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4

7.7257.9758.2258.4758.7258.9759.2259.4759.7259.975

10.47510.97511.47511.97512.97513.97514.97515.95516.95517.95518.95519.95520.95521.95522.94023.94024.94025.9401.3501.4751.6001.7251.8501.9752.1002.2252.3502.4752.6002.7252.8502.9753.1003.2253.350

0.0450.0450.0500.0500.0500.0500.0550.0550.0550.0550.0600.0600.0650.0650.0650.0700.0700.0750.0800.0850.0900.0950.0950.1000.1050.1100.1150.1200.0130.0140.0150.0160.0170.0180.0190.0200.0210.0220.0230.0240.0250.0260.0260.0280.029

0.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.275

0.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.006

196.22 202.57 208.92 215.27 221.62 227.97 234.32 240.67 247.02 253.37 266.07 278.77 291.47 304.17 329.57 354.97 380.37 405.26 430.66 456.06 481.46 506.86 532.26 557.66 582.68 608.08 633.48 658.88 34.2937.4740.6443.8246.9950.1753.3456.5259.6962.8766.0469.2272.3975.5778.7481.9285.09

1.14 1.14 1.27 1.27 1.27 1.27 1.40 1.40 1.40 1.40 1.52 1.52 1.65 1.65 1.65 1.78 1.78 1.91 2.03 2.16 2.29 2.41 2.41 2.54 2.67 2.79 2.92 3.05 0.330.360.390.410.440.460.480.510.540.560.590.610.640.660.670.710.73

5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 6.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.99

0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.15

www.gmors.com 36

O-R

ing

Stan

dard

Size

(AS

568A

)


AS 568ASIZE


INCHES


INCHES


MILLIMETERS


3 1/23 5/83 3/43 7/844 1/84 1/44 3/84 1/ 24 5/ 84 3/ 44 7/ 85 5 1/ 85 1/ 45 3/ 85 1/ 25 5/ 85 3/ 45 7/ 86 6 1/ 46 1/ 26 3/ 47 7 1/ 47 1/ 27 3/ 48 8 1/ 29 9 1/ 210 10 1/ 211 11 1/ 212 12 1/ 213 13 1/ 214 14 1/ 215 15 1/ 216

44 1/84 1/44 3/84 1/24 5/84 3/44 7/85 5 1/ 85 1/ 45 3/ 85 1/ 25 5/ 85 3/ 45 7/ 86 6 1/ 86 1/ 46 3/ 86 1/ 26 3/ 47 7 1/ 47 1/ 27 3/ 48 8 1/ 48 1/ 29 9 1/ 210 10 1/ 211 11 1/ 212 12 1/ 213 13 1/ 214 14 1/ 215 15 1/ 216 16 1/ 2

1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4

3.4753.6003.7253.8503.9754.1004.2254.3504.4754.6004.7254.85

4.9755.1005.2255.3505.4755.6005.7255.8505.9756.2256.4756.7256.9757.2257.4757.7257.9758.4758.9759.4759.975

10.47510.97511.47511.97512.47512.97513.47513.97514.47514.97515.47515.955

0.0300.0310.0320.0330.0330.0340.0350.0360.0330.0330.0330.0330.0370.0370.0370.0370.0370.0370.0370.0370.0370.0400.0400.0400.0400.0450.0450.0450.0450.0550.0550.0550.0550.0600.0600.0600.0600.0600.0600.0700.0700.0700.0700.0700.075

0.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.280.280.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.275

0.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.006

88.2791.4494.6297.79

100.97104.14107.32110.49113.67116.84120.02123.19126.37129.54132.72135.89139.07142.24145.42148.59151.77158.12164.47170.82177.17183.52189.87196.22202.57215.27227.97240.67253.37266.07278.77291.47304.17316.87329.57342.27354.97367.67380.37393.07405.26

0.750.790.810.830.840.870.890.910.840.840.840.840.940.940.940.940.940.940.940.940.941.021.021.021.021.141.141.141.141.41.41.41.41.521.521.521.521.521.521.781.781.781.781.781.91

6.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.99

0.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.15



O-R

ing

Stan

dard

Size

(AS

568A

)


O-Ring For Use With Internal Straight Thread Fluid ConnectionBosses And Tube Fittings

AS 568ASIZE

AS 568ASIZE


INCHES

NOMINAL (REF.)


INCHES

MEASUREMENTS IN INCHES


MILLIMETERS

MEASUREMENTS IN MILLIMETERS

ID ID

ID

ID

ID

OD

OD

CS CS

CS

CS

CS

A0462A0463A0464A0465A0466A0467A0468A0469A0470A0471A0472A0473A0474A0475

A0901A0902A0903A0904A0905A0906A0907A0908A0909A0910A0911A0912A0913A0914A0916A0918A0920A0924A0928A0932

16 1/ 217 17 1/ 218 18 1/ 219 19 1/ 220 21 22 23 24 25 26

17 17 1/ 218 18 1/ 219 19 1/ 220 20 1/ 221 1/ 222 1/ 223 1/ 224 1/ 225 1/ 226 1/ 2

3/32 1/ 8 3/16 1/ 4 5/16 3/ 8 7/16 1/ 2 9/16 5/ 8 11/16 3/ 4 13/16 7/ 81 1 1/ 81 1/ 41 1/ 21 3/ 42

1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4

16.45516.95517.45517.95518.45518.95519.45519.95520.95521.95522.94023.94024.94025.940

0.0750.0800.0850.0850.0850.0900.0900.0950.0950.1000.1050.1100.1150.120

0.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.275

0.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.006

417.96430.66443.36456.06468.76481.46494.16506.86532.26557.66582.68608.08633.48658.88

1.912.032.162.162.162.292.292.412.412.542.672.792.923.05

6.996.996.996.996.996.996.996.996.996.996.996.996.996.99

0.150.150.150.150.150.150.150.150.150.150.150.150.150.15

0.1850.2390.3010.3510.4140.4680.5300.6440.7060.7550.8630.9240.9861.0471.1711.3551.4751.7202.0902.337

0.0050.0050.0050.0050.0050.0050.0070.0090.0090.0090.0090.0090.0100.0100.0100.0120.0140.0140.0180.018

0.0560.0640.0640.0720.0720.0780.0820.0870.0970.0970.1160.1160.1160.1160.1160.1160.1180.1180.1180.118

0.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0040.0040.0040.0040.0040.0040.0040.0040.0040.004

4.70 6.077.658.92

10.5211.8913.4616.3617.9319.1821.9223.4725.0426.5929.7434.4237.4743.6953.0959.36

0.130.130.130.130.130.130.180.230.230.230.230.230.250.250.250.300.360.360.460.46

1.421.631.631.831.831.982.082.212.462.462.95 2.95 2.95 2.95 2.95 2.95 3.00 3.00 3.00 3.00

0.080.080.080.080.080.080.080.080.080.080.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10

www.gmors.com 38





ID ID CS CS

3.10 4.10 5.10 6.10 7.10 8.10 9.10 10.10 11.10 12.10 13.10 14.10 15.10 16.10 17.10 18.10 19.10 20.10 21.10 22.10 25.10 27.10 29.10 32.10 35.10 37.10 3.60 4.60 5.60 6.60 7.60 8.60 9.60 10.60 11.60 12.60 13.60 14.60 15.60 16.60 17.60 18.60 19.60 20.60 21.60 24.60 27.60 29.60 31.60 34.60 35.60

37.60 39.60 41.60 44.60 45.60 47.60 49.60 51.60 54.60 55.60 57.60 58.60 59.60 61.60 62.60 64.60 67.60 69.60 19.50 21.50 22.50 24.50 25.50 26.50 27.50 29.50 31.50 32.50 34.50 35.50 36.50 37.50 39.50 41.50 42.50 44.50 49.50 54.50 55.50 57.50 59.50 62.50 64.50 69.50 74.50 79.50 84.50 89.50 94.50 99.50 104.50

0.14 0.14 0.15 0.16 0.17 0.18 0.18 0.19 0.20 0.21 0.21 0.22 0.23 0.24 0.24 0.25 0.26 0.27 0.27 0.28 0.30 0.32 0.33 0.35 0.37 0.39 0.14 0.15 0.16 0.16 0.17 0.18 0.19 0.19 0.20 0.21 0.22 0.22 0.23 0.24 0.25 0.25 0.26 0.27 0.28 0.30 0.32 0.33 0.35 0.37 0.38

1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40

0.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.09

0.39 0.41 0.42 0.44 0.45 0.46 0.48 0.49 0.51 0.52 0.53 0.54 0.55 0.56 0.57 0.58 0.60 0.62 0.26 0.28 0.28 0.30 0.31 0.31 0.32 0.33 0.35 0.36 0.37 0.38 0.38 0.39 0.41 0.42 0.43 0.44 0.48 0.51 0.52 0.53 0.55 0.57 0.58 0.62 0.65 0.68 0.72 0.75 0.79 0.82 0.86

2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00

0.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.09

O-Ring Standard Size (BS 4518)O

-Rin

g St

anda

rdSi

ze (B

S 45

18)

ID ID CS CS

0.122 0.161 0.201 0.240 0.280 0.319 0.358 0.398 0.437 0.476 0.516 0.555 0.594 0.634 0.673 0.713 0.752 0.791 0.831 0.870 0.988 1.067 1.146 1.264 1.382 1.461 0.142 0.181 0.220 0.260 0.299 0.339 0.378 0.417 0.457 0.496 0.535 0.575 0.614 0.654 0.693 0.732 0.772 0.811 0.850 0.969 1.087 1.165 1.244 1.362 1.402

1.480 1.559 1.638 1.756 1.795 1.874 1.953 2.031 2.150 2.189 2.268 2.307 2.346 2.425 2.465 2.543 2.661 2.740 0.768 0.846 0.886 0.965 1.004 1.043 1.083 1.161 1.240 1.280 1.358 1.398 1.437 1.476 1.555 1.634 1.673 1.752 1.949 2.146 2.185 2.264 2.343 2.461 2.539 2.736 2.933 3.130 3.327 3.524 3.720 3.917 4.114

0.006 0.006 0.006 0.006 0.007 0.007 0.007 0.007 0.008 0.008 0.008 0.009 0.009 0.009 0.009 0.010 0.010 0.011 0.011 0.011 0.012 0.013 0.013 0.014 0.015 0.015 0.006 0.006 0.006 0.006 0.007 0.007 0.007 0.007 0.008 0.008 0.009 0.009 0.009 0.009 0.010 0.010 0.010 0.011 0.011 0.012 0.013 0.013 0.014 0.015 0.015

0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094

0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004

0.015 0.016 0.017 0.017 0.018 0.018 0.019 0.019 0.020 0.020 0.021 0.021 0.022 0.022 0.022 0.023 0.024 0.024 0.010 0.011 0.011 0.012 0.012 0.012 0.013 0.013 0.014 0.014 0.015 0.015 0.015 0.015 0.016 0.017 0.017 0.017 0.019 0.020 0.020 0.021 0.022 0.022 0.023 0.024 0.026 0.027 0.028 0.030 0.031 0.032 0.034

0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118

0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004

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