BS-SP-10 11-1949.pdf
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1、BRITISH STANDARD BS SP 10 & 11:1949 Incorporating Amendment No. 1 Specification for Washers for aircraft purposes (primarily for facing purposes) Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:19:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS SP 10 & 11:19
2、49 This British Standard, having been approved by the Aircraft Industry Standards Committee and endorsed by the Chairman of the Engineering Divisional Council, was published under the authority of the General Council of the Institution on 10 February 1949 BSI 05-2000 ISBN 0 580 34439 8 A British Sta
3、ndard does not purport 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
4、, an inside front cover, pages i and ii, 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.Date of issueCom
5、ments 2573September 1956 Indicated by a sideline in the margin Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:19:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS SP 10 & 11:1949 BSI 05-2000i Contents Page 1Scope1 2Material1 3Dimensions1 4Finish1 5Identificat
6、ion1 Table 1 Material1 Table 2 Dimensions2 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:19:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:19:13 GMT+00:00 2006,
7、 Uncontrolled Copy, (c) BSI BS SP 10 & 11:1949 BSI 05-20001 1 Scope These British Standards apply to the material, dimensions, and finish of washers generally used for facing purposes in aircraft. The washers are primarily for use with B.A. and B.S.F. bolts. 2 Material The washers shall be manufactu
8、red from the appropriate material specified in Table 1. 3 Dimensions The washers shall conform to the dimensions specified in Table 2. 4 Finish The washers shall be flat, within a tolerance of 0.005 in., with parallel faces and free from burrs. All washers manufactured from cold rolled steel, comply
9、ing with BS S 5141) shall be cadmium plated in accordance with Ministry of Supply Process Specification D.T.D. 904.1) 5 Identification The washers shall be identified for ordering purposes by the number of the British Standard together with the appropriate code letter shown in Table 2, e.g. Stainles
10、s steel washer for ) in. bolt. is SP. 11 J. Table 1 Material 1) Latest issue. BSMaterial BS SP 10Cold rolled steel, complying with BS S 514a cadmium plated. BS SP 11Stainless steel, complying with BS S 521a. a Latest issue. Licensed Copy: London South Bank University, London South Bank University, S
11、at Dec 09 03:19:13 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS SP 10 & 11:1949 2 BSI 05-2000 Table 2 Dimensions To suit boltsCode letter Diameter ADiameter B max.min.max.min. 6 B.AA in. 0.123 in. 0.118 in. 0.233 in. 0.228 4 B.AB0.1570.1520.3010.296 2 B.AC0.2020.1970.3910.386 in. B.S.F. E0.2700.265
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