REAFFIRMED2014FORCURRENTCOMMITTEEPERSONNELPLEASEE-MAILCS@asme.orgIntentionallyleftblankNATIONALSTANDARDGAGINGFORDRYSEALPIPETHREADS(INCH)ASMEB1.20.5-1991(REVISIONOFANSI81.20.5-1978)TheAmericanSocietyofMechanicalEngineers345East47thStreet,NewYork,N.Y.10017-DateofIssuance:March15,1991ThisStandardwillberevisedwhentheSocietyapprovestheissuanceofanewedition.TherewillbenoaddendaorwritteninterpretationsoftherequirementsofthisStandardissuedtothisedition.ASMEistheregisteredtrademarkofTheAmericanSocietyofMechanicalEngineers.ThiscodeorstandardwasdevelopedunderproceduresaccreditedasmeetingthecriteriaforAmericanNationalStandards.TheConsensusCommitteethatapprovedthecodeorstandardwasbalancedtoassurethatindividualsfromcompetentandconcernedinterestshavehadanoppor-tunitytoparticipate.Theproposedcodeorstandardwasmadeavailableforpublicreviewandcommentwhichprovidesanopportunityforadditionalpublicinputfromindustry,academia,reg-ulatoryagencies,andthepublic-at-large.ASMEdoesnot"approve,""rate,"or"endorse"anyitem,construction,proprietarydevice,oractivity.ASMEdoesnottakeanypositionwithrespecttothevalidityofanypatentrightsassertedinconnectionwithanyitemsmentionedinthisdocument,anddoesnotundertaketoinsureanyoneutilizingastandardagainstliabilityforinfringementofanyapplicableLettersPatent,norassumeanysuchliability.Usersofacodeorstandardareexpresslyadvisedthatdeterminationofthevalidityofanysuchpatentrights,andtheriskofinfringementofsuchrights,isentirelytheirownresponsibility.Participationbyfederalagencyrepresentative(s)orperson(s)affiliatedwithindustryisnottobeinterpretedasgovernmentorindustryendorsementofthiscodeorstandard.ASMEacceptsresponsibilityforonlythoseinterpretationsissuedinaccordancewithgoverningASMEproceduresandpolicieswhichprecludetheissuanceofinterpretationsbyindividualvol-unteers.Nopartofthisdocumentmaybereproducedinanyform,inanelectronicretrievalsystemorotherwise,withoutthepriorwrittenpermissionofthepublisher.Copyright01991byTHEAMERICANSOCIETYOFMECHANICALENGINEERSAllRightsReserve...
