BS-A-345-1999 ISO-8538-1999.pdf
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1、BRITISH STANDARD AEROSPACE SERIES BS A 345:1999 ISO 8538:1999 Nuts, hexagonal, self-locking, with counterbore and captive washer, with MJ threads, classifications: 1 100 MPa (at ambient temperature)/235 C, 1 100 MPa (at ambient temperature)/315 C, 1 100 MPa (at ambient temperature)/425 C Dimensions
2、ICS 49.030.30 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:36:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS A 345:1999 This British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority
3、 of the Standards Committee and comes into effect on 15 April 1999 BSI 03-2000 ISBN 0 580 32377 3 National foreword This British Standard reproduces verbatim ISO 8538:1999 and implements it as the UK national standard. The UK participation in its preparation was entrusted by Technical Committee ACE/
4、12, Aerospace fasteners and fastening systems, to Subcommittee ACE/12/1, Aerospace fasteners and fastening systems (International), which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation,
5、or proposals for change, and keep 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 imple
6、ment international or European 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 purpo
7、rt to include all the necessary 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 co
8、ver, pages i and ii, the ISO title page, pages ii to iv, pages 1 and 2 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No.
9、DateComments Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:36:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS A 345:1999 BSI 03-2000i Contents Page National forewordInside front cover Forewordiii Text of ISO 85381 Licensed Copy: London South Bank Universit
10、y, London South Bank University, Sat Dec 09 03:36:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:36:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: London South Bank University, London South
11、 Bank University, Sat Dec 09 03:36:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS A 345:1999 ii BSI 03-2000 Contents Page Forewordiii Introduction1 1Scope1 2Normative references1 3Configuration and dimensions1 Figure 12 Table 12 Descriptors: Aircraft industry, fasteners, MJ threads, nuts (fastener
12、s), hexagonal nuts, counterbore nuts, self-locking nuts, classification, form specifications, dimensions. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:36:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS A 345:1999 BSI 03-2000iii Foreword ISO (the Internati
13、onal Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been
14、 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) on all matters of electrotechnical standa
15、rdization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. 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 leas
16、t 75 % of the member bodies casting a vote. International Standard ISO 8538 was prepared by Technical Committee ISO/TC 20, Aircraft and space vehicles, Subcommittee SC 4, Aerospace fastener systems. This second edition cancels and replaces the first edition (ISO 8538:1986), which has been technicall
17、y revised. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:36:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:36:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS A
18、 345:1999 BSI 03-20001 Introduction The dimensions specified in this International Standard have been determined to allow production of a part which will satisfy the requirements of the procurement specification ISO 5858. 1 Scope This International Standard specifies the dimensions of self-locking h
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