SAEAS568B2001AerospaceSizeStandardforOR

SAETechnicalStandardsBoardRulesprovidethat:“ThisreportispublishedbySAEtoadvancethestateoftechnicalandengineeringsciences.Theuseofthisreportisentirelyvoluntary,anditsapplicabilityandsuitabilityforanyparticularuse,includinganypatentinfringementarisingtherefrom,isthesoleresponsibilityoftheuser.”SAEreviewseachtechnicalreportatleasteveryfiveyearsatwhichtimeitmaybereaffirmed,revised,orcancelled.SAEinvitesyourwrittencommentsandsuggestions.Copyright2001SocietyofAutomotiveEngineers,Inc.Allrightsreserved.PrintedinU.S.A.TOPLACEADOCUMENTORDER:[phone]FAX:[phone]SAEWEBADDRESS::1.1Purpose:ThisAerospaceStandardspecifiestheinsidediameters,cross-sections,tolerances,andsizeidentificationcodes(dashnumbers)forO-ringsusedinsealingapplicationsandforstraightthreadtubefittingbossgaskets.Thedimensionsandtolerancesspecifiedinthisstandardaresuitableforanyelastomericmaterialprovidedthatsuitabletoolingisavailable.1.2Application:1.2.1ThisstandardisintendedtobeusedinthepreparationofCompany,Military,orotherStandardDrawingsforO-Rings.Eachdashnumber,whichshouldbeappendedtoanappropriateDrawingorStandardnumber,identifiesonenominalsizeO-Ringonly.1.2.2NoattemptismadeinthisAStoindicatewhichoftheO-RingsizeslistedunderthissystemshouldbeincludedinanyparticularStandardDrawing.ItsonlypurposeistostandardizeO-Ringsizesanddimensionaltolerancesandthemeansofidentifyingthemdimensionally.2.NOTES:2.1OnlyoneClassoftolerancesappears,conformingtotheformerClassIforO-Ringswithinsidediametersuptoandincluding0.50inch(12.7mm),andtotheformerClassIIforO-Ringslargerthan0.50inch(12.7mm).2.2InTable1,thedashnumbersaredividedintogroupsofonehundred,andwithineachgrouparesequentialandnonsignificant.Eachhundredgroup,however,identifiesthecrosssectionsizeoftheO-Ringswithinthegroup.Forexample,all0.070inch(1.78mm)andsmallerO-Ringcrosssectionsfallintothegroupof-001thru-099.The0.103inch(2.62mm)crosssectionringsfallintothegroupof-100thru-199,andsoon.CopyrightSAEInternationalProvidedbyIHSunderlicensewithSAELicensee=DefenseContractMgmtCommand/5935922100NotforResale,07/07/200622:39:47MDTNoreproductionornetworkingpermittedwithoutlicensefromIHS--````,,`,,,,,```,``,`,`,,,``-`-`,,`,,`,`,,`---SAEAS568RevisionB-2-2.3Table2,usingthe900seriesdashnumbers,listsallofthepresentlystandardizedstraightthreadtubefittingbossgaskets.Thisserieshastraditionallyutilizedthesignificantdashnumberingsystem,whereinthedashnumberdesignatesthetubesizein16th’sofaninch.Thispracticeisalsofollowedhere,withtheexceptionofthe-901,whichisintendedfora0.0938inch(2.38mm)nominalOD(outsidediameter)tube,the0.0625inch(1.59mm)ODtubenotbeingincommonaircraftuse.2.4Intheinterestofstandardization,itisrequestedthatcompaniesoragenciesdonotusethedashnumbersinTable1towhichsizeshavenotbeenassigned.Sizesnotassignedareindicatedbyanasterisk(*).AnyonefeelingthatanyspecialsizenotnowshowniswidelyenoughusedtojustifystandardizationshoulddirectsucharequesttoAMSCommittee“CE”forcoordination.FIGURE1-Cross-SectionalDiameter“W”PREPAREDUNDERTHEJURISDICTIONOFAMSCOMMITTEE“CE”CopyrightSAEInternationalProvidedbyIHSunderlicensewithSAELicensee=DefenseContractMgmtCommand/5935922100NotforResale,07/07/200622:39:47MDTNoreproductionornetworkingpermittedwithoutlicensefromIHS--````,,`,,,,,```,``,`,`,,,``-`-`,,`,,`,`,,`---SAEAS568RevisionB-3-TABLE1-AerospaceSizeStandardsforO-RingsDashNumberIDInchesminIDInchesmaxIDmmminIDmmmaxWInchesminWInchesmaxWmmminWmmmaxVolume(Ref)CubicInchesVolume(Ref)Cubiccm-0010.0250.0330.640.840.0370.0430.941.090.00030.005-0020.0380.0460.971.170.0470.0531.191.350.00060.010-0030.0520.0601.321.520.0570.0631.451.600.00100.016-0040.0650.0751.651.900.0670.0731.701.850.00170.028-0050.0960.1062.442.690.0670.0731.701.850.00210.034-0060.1090.1192.773.020.0670.0731.701.850.00220.036-0070.1400.1503.563.810.0670.0731.701.850.00260.043-0080.1710.1814.344.600.0670.0731.701.850.00300.049-0090.2030.2135.165.410.0670.0731.701.850.00340.056-0100.2340.2445.946.200.0670.0731.701.850.00370.061-0110.2960.3067.527.770.0670.0731.701.850.00450.074-0120.3590.3699.129.370.0670.0731.701.850.00520.085-0130.4210.43110.6910.950.0670.0731.701.850.00600.098-0140.4840.49412.2912.550.0670.0731.701.850.00680.111-0150.5440.55813.8214.170.0670.0731.701.850.00750.123-0160.6050.62315.3715.820.0670.0731.701.850.00830.136-0170.6670.68516.9417.400.0670.0731.701.850.00900.147-0180.7300.74818.5419.000.0670.0731.701.850.00980.161-0190.7920.81020.1220.570.0670.0731.701.850.01050.172-0200.8550.87321.7222.170.0670.0731.701.850.01130.185-0210.9170.93523.2923.750.0670.0731.701.850.01200.197-0220.9790.99924.8725.370.0670.0731.701.850.01280.210-0231.0411.06126.4426.950.0670.0731.701.850.01360.223-0241.1041.12428.0428.550.0670.0731.701.850.01430.234-0251.1651.18729.5930.150.0670.0731.701.850.01510.247-0261.2281.25031.1931.750.0670.0731.701.850.01580.259-0271.2901.31232.7733.320.0670.0731.701.850.01660.272-0281.3511.377