ISO INTERNATIONAL STANDARD 12268 Firstedition 1997-08-01 AerospaceNuts,hexagonal,plain,reduced height,reduced acrossflats,with MJ threads, classifications:450MPa(atambient temperature)/425°C,600MPa(atambient temperature)/235C,600MPa(atambient temperature)/315C,600MPa(atambient temperature)/650°C,900MPa(atambient temperature)/235°C,900MPa(atambient temperature)/730°Cand1100MPa (at ambienttemperature)/600C-Dimensions Aeronautique et espace-Ecrous hexagonaux ordinaires, hauteur reduite, surplatsreduits,afiletageMJ,classifications:45oMPa(atemperature ambiante)/425C,600MPa(atemperatureambiante)/235C, 600MPa(atemperatureambiante)/315C,600MPa(atempérature nn ambiante)/650C,900MPa(atempératureambiante)/235C, 1011 900MPa(a temperature ambiante)/730C et1100MPa(a temperature ambiante)/600C-Dimensions inn OSI Referencenumber ISO12268:1997(E) ISO12268:1997(E) Foreword iSO (the International Organization for Standardization)is a worldwide federation of national standards bodies (IsO memberbodies).The work of technical committees.Each memberbodyinterested in a subjectforwhich a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non- governmental, in liaison with ISO,also take part in the work.ISO collaborates closely with the International Electrotechnical Commission (IEC)onall mattersofelectrotechnicalstandardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting.Publication as an International Standard requires approval by at least 75%of the member bodies casting avote. International Standard ISO12268 was prepared by Technical Committee ISO/TC20,Aircraftandspacevehicles,Subcommittee SC4,Aerospace fastener systems. (n11 1011A na1 1011 inn 117 1SO1997 microfilm, without permission in writing from the publisher. internationai OrganizationforStandardization Casepostale56.CH-1211Geneve20.Switzerland Internet central@iso.ch X.400 C=ch;a=400net;p=iso;0=isocs;S=central Printed in Switzerland ii CISO ISO12268:1997(E) Introduction The dimensions specifiedin this International Standardhavebeen determined to satisty the requirements of the procurement specification of ISO9139. na111 nR ill

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