1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS ISO 12277:2000 ICS 49.
2、030.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Aerospace Gang channel, self-locking, floating, standard series, with counterbore, classifications: 1 100 MPa (at ambient temperature)/1208C, 1 100 MPa (at ambient temperature)/2358C and 1 100 MPa (at ambient temperature)/
3、4258C DimensionsThis British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 November 2000 BSI 11-2000 ISBN 0 580 36574 3 BS ISO 12277:2000 Amendments issued since publica
4、tion Amd. No. Date Comments National foreword This British Standard reproduces verbatim ISO 12277:2000 and implements it as the UK national standard. The UK participation in its preparation was entrusted by Technical Committee ACE/12, Aerospace Fasteners and Fastening systems, Details and Parts, to
5、Subcommittee ACE/12/1, Aeroespace Fasteners and Fastening systems, Details and Parts (international), which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and k
6、eep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European
7、 publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessar
8、y provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages
9、 ii to iv, pages 1 to 3 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.INTERNATIONAL STANDARD ISO 12277 Firstedition 2000-09-01 Referencenumber ISO12277:2000(E) AerospaceGangchannel,self-locking, floating,standardseries,withcounterbo
10、re, classifications:1100MPa(atambient temperature)/120C,1100MPa(atambient temperature)/235Cand1100MPa(at ambienttemperature)/425CDimensions Aronautique et espace Bandes crous prisonniers, freinage interne, flottants, srie normale, avec chambrage, classifications: 1 100 MPa ( temprature ambiante)/120
11、 C, 1 100 MPa ( temprature ambiante)/235 C et 1 100 MPa ( temprature ambiante)/425 C DimensionsISO12277:2000(E) ii ISO12277:2000(E)iii Foreword ISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISO memberbodies).TheworkofpreparingInternationalStandard
12、sisnormallycarriedoutthroughISOtechnicalcom- mittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhasthe righttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnon-governmental,inliai- sonwithISO,alsotakepartinthework.ISOcollaboratescloselywit
13、htheInternationalElectrotechnicalCommission (IEC)onallmattersofelectrotechnicalstandardization. InternationalStandardsaredraftedinaccordancewiththerulesgivenintheISO/IECDirectives,Part3. DraftInternationalStandardsadoptedbythetechnicalcommitteesarecirculatedtothememberbodiesforvoting. Publicationasa
14、nInternationalStandardrequiresapprovalbyatleast75%ofthememberbodiescastingavote. AttentionisdrawntothepossibilitythatsomeoftheelementsofthisInternationalStandardmaybethesubjectof patentrights.ISOshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights. InternationalStandardISO12277wasprepared
15、byTechnicalCommitteeISO/TC20, Aircraft and space vehicles, SubcommitteeSC4, Aerospace fastener systems.ISO12277:2000(E) iv Introduction ThedimensionsspecifiedinthisInternationalStandardhavebeendeterminedtoallowproductionofapartwhichwill satisfytherequirementsoftheprocurementspecificationISO5858.INTE
16、RNATIONALSTANDARD ISO12277:2000(E)1 AerospaceGangchannel,self-locking,floating,standardseries, withcounterbore,classifications:1100MPa(atambient temperature)/120C,1100MPa(atambienttemperature)/235C and1100MPa(atambienttemperature)/425CDimensions 1Scope ThisInternationalStandardspecifiesthedimensions
17、ofstandardseriesgangchannelswithself-locking,floating nuts,withcounterbore,withMJthreads,ofclassifications: 1) / 2) , 1) / 2) , 1) / 2) . ThisInternationalStandardisonlyapplicabletothecompilationofaerospaceproductstandards. 2Normativereferences Thefollowingnormativedocumentscontainprovisionswhich,th
18、roughreferenceinthistext,constituteprovisionsof thisInternationalStandard.Fordatedreferences,subsequentamendmentsto,orrevisionsof,anyofthesepublica- tionsdonotapply.However,partiestoagreementsbasedonthisInternationalStandardareencouragedtoinvesti- gatethepossibilityofapplyingthemostrecenteditionsoft
19、henormativedocumentsindicatedbelow.Forundated references,thelatesteditionofthenormativedocumentreferredtoapplies.MembersofISOandIECmaintain registersofcurrentlyvalidInternationalStandards. ISO5855-2:1999, Aerospace MJ threads Part 2: Limit dimensions for bolts and nuts. ISO5858:1999, Aerospace Nuts,
20、 self-locking, with maximum operating temperature less than or equal to 425 C Procurement specification. ISO8788:2000, Aerospace Nuts, metric Tolerances of form and position. 3 Configurationanddimensions SeeFigure1andTable1.Dimensionsandtolerancesareinmillimetres.Theyapplyafteranysurfacecoating(s)bu
21、t beforetheapplicationofanylubricant. Themetalliccap(optional)shallremainjoined(typeofattachmentattheusersdiscretion)tothenutatthemaximum operatingtemperature.SeetestconditionsinISO5858. 1) Correspondstotheminimumtensilestresswhichthenutisabletowithstandatambienttemperaturewithoutbreakingor cracking
22、whentestedwithaboltofahigherstrengthclass. 2) Maximumtemperaturethatthenutisabletowithstand,withoutpermanentalterationtoitsoriginalcharacteristics,afterambi- enttemperaturehasbeenrestored.Themaximumtemperatureisconditionedeitherbythematerialorbythesurfacetreatment. 1100MPa120 C 1100MPa 235 C 1100MPa
23、 425 C ISO12277:2000(E) 2 Key 1Gang 2Nut 3 Metalliccap TolerancesofformandpositionshallconformtothosespecifiedinISO8788.Detailsofformnotstatedareatthe manufacturersoption. a Thesevalues,inmicrometres,arevalidpriortoanysurfacecoating(s).Thevaluesdonotapplytothreads,punchedholesor shearedgesthesurface
24、textureofwhichwillbeasachievedbytheusualmanufacturingmethods. b Thegangexternalformandthenutretentionfeaturearelefttothemanufacturersdiscretion. c Formout-of-roundinthisareatoachievetheself-lockingtorquerequirement.Toolingmarkspermissibleinthisarea d Thread e Standardlength:200max. Figure1ISO12277:2
25、000(E)3 Table1 Diameter code Thread a bc max.max.max.min.min. max.min.max.max.max.max.max.min. 040 MJ4 0,7-4H6H 5,3 0,4 6,6 8 18 4,4 2,2 6,7 10,6 5,8 0,8 11 13 5,5 0,250,75 050 MJ5 0,8-4H6H 6,6 8,1 9 20 5,5 2,4 13,2 6,9 11,413,4 6,5 060 MJ6 1-4H5H 7,3 9,2 11 24 6,5 2,7 14,7 8,1 12,714,7 7,5 080 MJ8
26、1-4H5H 9 0,512,8 14 30 8,5 12,718 9,9 1 15 18 9,5 a InaccordancewithISO5855-2.Intheself-lockingzone,thetolerancesapplybeforeformingout-of-round. b FirstnominalvaluesofnutspacingIncrements: 1stchoice:6 2ndchoice:2 c Maximumintrusionofthebolt. BCDEFGHJKMNPQSVWBS ISO 12277:2000 BSI 389 Chiswick High Ro
27、ad London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BSI British Standards Institu
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