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AS568O-RingSizeReferenceO-RingReference:AS568SizesFORSEMICONDUCTORAPPLICATIONSCSIDODAS568DimensionsSAEAS568ispublishedbytheaerospaceportionoftheSocietyofAutomotiveEngineers.ItsactualtitleisAerospaceSizeStandardforO-Rings,althoughitsuseismuchmorewidespreadthanjusttheaerospaceindustry.SAEAS568isthemostcommonlyusedstandardintheUSforaerospace,automotiveandgeneralindustrialapplications.ThesizesinthestandardaredefinedbymaximumandminimumIDandCSdimensions(althoughmostlistings,includingthisone,showthisasamidpointanda±tolerance).EachIDandCScombinationisidentifiedbyathree-digit“dashnumber”asshownbelow.AS568PartNumbers:AS568-214CD486SAEStandardDashSizeCleaningandPackagingDesignator(seetablebelow)CompoundNumber(seetable)CleaningandPackagingDesignators:CDFirstletterindicatescleaningC=CleanincleanroomwithIPA+HeptaneW=CleanincleanroomwithHCL+DIWandIPA+HeptaneN=NospecialcleaningneededSecondletterindicatespackagingD=Doublebag,innerbagtobecleanroomqualityS=SinglebaginblueSimritbagB=Bulkpackagingperspecialcustomerinstructions-0XX1.78*0.070*-1XX2.620.103-2XX3.530.139-3XX5.330.210-4XX6.990.275-9XXvaries*Exceptfor-001,-002and-003sizesCross-sectionSizeCodeMillimetersInches486Whitecompoundforgeneralplasmaapplications487Blackcompoundforhightemperatureapplications488Whitecompoundforhightemperatureapplications489Clearcompoundforplasmaandwetapplications495BlackcompoundforwetapplicationsSemiconductorCompoundsNumberDescriptionAS568Nominal(ref.,inches)MeasurementsininchesMeasurementsinmillimetersAS568SIZEIDCSID±CS±ID±CS±SIZEAS568DimensionsSAEAS568ispublishedbytheaerospaceportionoftheSocietyofAutomotiveEngineers.ItsactualtitleisAerospaceSizeStandardforO-Rings,althoughitsuseismuchmorewidespreadthanjusttheaerospaceindustry.SAEAS568isthemostcommonlyusedstandardintheUSforaerospace,automotiveandgeneralindustrialapplications.CSIDOD1-0011/321/320.0290.0040.0400.0030.740.101.020.08-001-0023/643/640.0420.0040.0500.0031.070.101.270.08-002-0031/161/160.0560.0040.0600.0031.420.101.520.08-003-0045/641/160.0700.0050.0700.0031.780.131.780.08-004-0053/321/160.1010.0050.0700.0032.570.131.780.08-005-0061/81/160.1140.0050.0700.0032.900.131.780.08-006-0075/321/160.1450.0050.0700.0033.680.131.780.08-007-0083/161/160.1760.0050.0700.0034.470.131.780.08-008-0097/321/160.2080.0050.0700.0035.280.131.780.08-009-0101/41/160.2390.0050.0700.0036.070.131.780.08-010-0115/161/160.3010.0050.0700.0037.650.131.780.08-011-0123/81/160.3640.0050.0700.0039.250.131.780.08-012-0137/161/160.4260.0050.0700.00310.820.131.780.08-013-0141/21/160.4890.0050.0700.00312.420.131.780.08-014-0159/161/160.5510.0070.0700.00314.000.181.780.08-015-0165/81/160.6140.0090.0700.00315.600.231.780.08-016-01711/161/160.6760.0090.0700.00317.170.231.780.08-017-0183/41/160.7390.0090.0700.00318.770.231.780.08-018-01913/161/160.8010.0090.0700.00320.350.231.780.08-019-0207/81/160.8640.0090.0700.00321.950.231.780.08-020-02115/161/160.9260.0090.0700.00323.520.231.780.08-021-02211/160.9890.0100.0700.00325.120.251.780.08-022-02311/161/161.0510.0100.0700.00326.700.251.780.08-023-02411/81/161.1140.0100.0700.00328.300.251.780.08-024-02513/161/161.1760.0110.0700.00329.870.281.780.08-025-02611/41/161.2390.0110.0700.00331.470.281.780.08-026-02715/161/161.3010.0110.0700.00333.050.281.780.08-027-02813/81/161.3640.0130.0700.00334.650.331.780.08-028-02911/21/161.4890.0130.0700.00337.820.331.780.08-029AS568Nominal(ref.,inches)MeasurementsininchesMeasurementsinmillimetersAS568SIZEIDCSID±CS±ID±CS±SIZEAS568DimensionsSAEAS568ispublishedbytheaerospaceportionoftheSocietyofAutomotiveEngineers.ItsactualtitleisAerospaceSizeStandardforO-Rings,althoughitsuseismuchmorewidespreadthanjusttheaerospaceindustry.SAEAS568isthemostcommonlyusedstandardintheUSforaerospace,automotiveandgeneralindustrialapplications.CSIDOD2-03015/81/161.6140.0130.0700.00341.000.331.780.08-030-03113/41/161.7390.0150.0700.00344.170.381.780.08-031-03217/81/161.8640.0150.0700.00347.350.381.780.08-032-03321/161.9890.0180.0700.00350.520.461.780.08-033-03421/81/162.1140.0180.0700.00353.700.461.780.08-034-03521/41/162.2390.0180.0700.00356.870.461.780.08-035-03623/81/162.3640.0180.0700.00360.050.461.780.08-036-03721/21/162.4890.0180.0700.00363.220.461.780.08-037-03825/81/162.6140.0200.0700.00366.400.511.780.08-038-03923/41/162.7390.0200.0700.00369.570.511.780.08-039-04027/81/162.8640.0200.0700.00372.750.511.780.08-040-04131/162.9890.0240.0700.00375.920.611.780.08-041-04231/41/163.2390.0240.0700.00382.270.611.780.08-042-04331/21/163.4890.0240.0700.00388.620.611.780.08-043-04433/41/163.7390.0270.0700.00394.970.691.780.08-044-04541/163.9890.0270.0700.003101.320.691.780.08-045-04641/41/164.2390.0300.0700.003107.670.761.780.08-046-04741/21/164.4890.0300.0700.003114.020.761.780.08-047-04843/41/164.7390.0300.0700.003120.370.761.780.08-048-04951/164.9890.0370.0700.003126.720.941.780.08-049-05051/41/165.2390.0370.0700.003133.070.941.780.08-050-1021/163/320.0490.0050.1030.0031.240.132.620.08-102-1033/323/320.0810.0050.1030.0032.060.132.620.08-103-1041/83/320.1120.0050.1030.0032.840.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