1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI British StandardsSpecification for corrosionresisting steel split cotter pins for aircraft Inch seriesBS 2SP 90:2008Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 02/03/2009 02:48, Uncontroll
2、ed Copy, (c) BSIBS 2SP 90:2008 BritiSh StandardPublishing and copyright informationthe BSi copyright notice displayed in this document indicates when the document was last issued. BSi 2008iSBn 978 0 580 62207 6iCS 49.030.40the following BSi references relate to the work on this standard: Committee r
3、eference aCE/12 draft for comment 08/30178678 dCPublication historyFirst published July 1961 Second (present) edition, november 2008Amendments issued since publicationAmd. No. Date Text affected Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 02/03/2009 02:48, Uncontrolled Copy, (c) BSIBritiS
4、h Standard BSI 2008 iBS 2SP 90:2008ContentsForeword ii1 Scope 12 normative references 13 Material 14 dimensions 15 tolerance on nominal length 26 Eye 27 Shank 38 Ends of legs 39 Finish 310 Freedom from defects 311 Standard sizes 312 identification 3List of figuresFigure 1 Split cotter pins 1List of
5、tablestable 1 dimensions of split cotter pins 2table 2 tolerance on nominal length 2table 3 Standard lengths and part number codes for split cotter pins 4Summary of pagesthis document comprises a front cover, an inside front cover, pages i to ii, pages 1 to 4, an inside back cover and a back cover.L
6、icensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 02/03/2009 02:48, Uncontrolled Copy, (c) BSIBS 2SP 90:2008ii BSI 2008BritiSh StandardForewordPublishing informationthis British Standard is published by BSi and came into effect on 30 november 2008. it was prepared by technical Committee aCE/12,
7、Aerospace fasteners and fastening systems. a list of organizations represented on this committee can be obtained on request to its secretary.Supersessionthis British Standard supersedes BS SP 90:1961, which is withdrawn.Presentational conventionsthe provisions of this standard are presented in roman
8、 (i.e. upright) type. its requirements are expressed in sentences in which the principal auxiliary verb is “shall”.Commentary, explanation and general informative material is presented in smaller italic type, and does not constitute a normative element.Contractual and legal considerationsthis public
9、ation does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 02/03/2009 02:48, Uncontrolled Copy,
10、 (c) BSIBritiSh Standard BSI 2008 1BS 2SP 90:20081 Scopethis British Standard specifies the material, dimensions, finish and identification of corrosion-resisting split cotter pins for aircraft.2 Normative referencesthe following referenced documents are indispensable for the application of this doc
11、ument. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.BS 2S 130, Specification for 18/9 chromium-nickel corrosion-resisting steel (niobium stabilized) billets, bars, forgings and parts (54
12、0 MPa: limiting ruling section 150 mm)BS 2S 205, Austenitic chromium-nickel steel wire rod, wire and springs SpecificationBS En 2573, Aerospace series Steel FE-PA3601 (X6CrNiTi18-10) Softened Rm G 780 MPa Wire 0,25 mm G De G 3 mm3 Materialthe pins shall be manufactured from wire of half-round sectio
13、n with radiused edges, as shown in Figure 1, complying with the requirements of BS 2S 130, BS 2S 205 or BS En 2573.4 Dimensionsthe pins shall conform to the dimensions and tolerances given in Figure 1, table 1 and Clause 5.Figure 1 Split cotter pins A1.75 A1.75 AXXBCRX - XNominal length(See Table 3)
14、RAlternative typeof end permissibleAlternative typeof eye permissibleBLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 02/03/2009 02:48, Uncontrolled Copy, (c) BSIBS 2SP 90:20082 BSI 2008BritiSh Standardtable 1 Dimensions of split cotter pins1 2 3 4 5 6 7 8Nominal diameterShank diameter Length
15、 of eye Additional length of long legRadius on corners of wireA B C RMax Min Max Min 132 in Maxin in in in in in in in132 .031 2 .031 .026 .130 .090332 .002364 .046 9 .046 .041 .130 .090332 .003116 .062 5 .062 .056 .160 .120332 .005564 .078 1 .077 .071 .200 .160332 .006332 .093 7 .093 .086 .230 .190
16、332 .00718 .125 0 .124 .116 .300 .25018 .009532 .156 2 .155 .145 .360 .31018 .012316 .187 5 .186 .176 .440 .38018 .01414 .250 0 .249 .239 .560 .50018 .0195 Tolerance on nominal lengththe permissible tolerance on the nominal length shall be as as given in table 2.table 2 Tolerance on nominal lengthNo
17、minal diameterin Nominal lengthin Tolerancein G 18 G 2 132G 18 2 2 G 234 3642 18 G 14 G 234 3646 Eye6.1 Formthe eye shall approximate to the form shown in Figure 1.6.2 Lengththe length of the eye shall conform to the dimensions specified in table 1, Columns 5 and 6, when measured in accordance with
18、the following.insert the pin by hand as far as possible into a plain hole gauge, the hole being equivalent to the nominal diameter of the pin. Measure the distance from the leading face of the gauge to the extreme end of the eye.Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 02/03/2009 02:48
19、, Uncontrolled Copy, (c) BSIBritiSh Standard BSI 2008 3BS 2SP 90:20087 Shankthe shank shall be straight with both legs parallel throughout the nominal length.8 Ends of legsthe end of each leg shall be bevelled as shown in Figure 1 and shall be free from burrs.9 Finishthe finish shall be natural (as
20、manufactured).NOTE For example, there should be no further plating, passivation or acid cleaning applied.10 Freedom from defects10.1 the finished pins shall be free from all cracks and other harmful defects.10.2 Pins shall be rejected at any time for faults in, or revealed by, manufacture, although
21、they have been made from material passed previously for chemical composition and mechanical properties.11 Standard sizesthe standard lengths and part numbers of the pins shall be as given in table 3.12 Identificationthe pins shall be identified for ordering purposes by the number of this British Sta
22、ndard, together with the appropriate part code number shown in table 3, e.g. a 116 inch diameter pin 58 inch long is BS 2SP 90C51).1)Marking BS 2SP 90 on or in relation to a product represents a manufacturers declaration of conformity, i.e. a claim by or on behalf of the manufacturer that the produc
23、t meets the requirements of the standard. the accuracy of the claim is solely the claimants responsibility. Such a declaration is not to be confused with third-party certification of conformity.Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 02/03/2009 02:48, Uncontrolled Copy, (c) BSIBS 2SP
24、90:20084 BSI 2008BritiSh Standardtable 3Standard lengths and part number codes for split cotter pinsNominaldiameterinNominal lengthin14381258347811181141381121581341782218214212258234132a2a3a4a5a6a7364B2B3B4B5B6B7B8B9116C2C3C4C5C6C7C8C9C10C11C12C13C14C15564d2d3d4d5d6d7d8d9d10d11d12d13d14d15332E2E3E4
25、E5E6E7E8E9E10E11E12E13E14E15E1618G3G4G5G6G7G8G9G10G11G12G13G14G15G16G18G20G22532h3h4h5h6h7h8h9h10h11h12h13h14h15h16h18h20h22316K3K4K5K6K7K8K9K10K11K12K13K14K15K16K17a)K18K20K21a)K2214L4L5L6L7L8L9L10L11L12L13L14L15L16L18L20L22a)non-preferred sizes.Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS
26、, 02/03/2009 02:48, Uncontrolled Copy, (c) BSIThis page deliberately left blankLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 02/03/2009 02:48, Uncontrolled Copy, (c) BSIBSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in
27、Europe and at the international level. It is incorporated by Royal Charter.British Standards Institution (BSI)raising standards worldwideBSI Group Headquarters389 Chiswick High Road London W4 4AL UKTel +44 (0)20 8996 9001Fax +44 (0)20 8996 Standards are updated by amendment or revision. Users of Br
28、itishStandards should make sure that they possess the latest amendments oreditions.It is the constant aim of BSI to improve the quality of our products andservices. We would be grateful if anyone finding an inaccuracy orambiguity while using this British Standard would inform the Secretary ofthe tec
29、hnical committee responsible, the identity of which can be foundon the inside front cover.Tel: +44 (0)20 8996 9000 Fax: +44 (0)20 8996 7400BSI offers members an individual updating service called PLUS whichensures that subscribers automatically receive the latest editions ofstandards.Buying standard
30、sOrders for all BSI, international and foreign standards publicationsshould be addressed to BSI Customer Services.Tel: +44 (0)20 8996 9001 Fax: +44 (0)20 8996 7001Email: You may also buy directly using a debit/credit card from the BSI Shopon the website response to orders for international standard
31、s, it is BSI policy tosupply the BSI implementation of those that have been publishedas British Standards, unless otherwise requested.Information on standardsBSI provides a wide range of information on national, European andinternational standards through its Library.Various BSI electronic informati
32、on services are also available which givedetails on all its products and services. Contact the Information Centre. Tel: +44 (0)20 8996 7111 Fax: +44 (0)20 8996 7048 Email: Subscribing members of BSI are kept up to date with standardsdevelopments and receive substantial discounts on the purchase pric
33、eof standards. For details of these and other benefits contact MembershipAdministration. Tel: +44 (0)20 8996 7002 Fax: +44 (0)20 8996 7001 Email: Information regarding online access to British Standards via BritishStandards Online can be found at information about BSI is available on the BSI websi
34、te CopyrightCopyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of thepublications of the international standardization bodies. Except as permitted under theCopyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrievalsystem or transmitt
35、ed in any form or by any means electronic, photocopying, recording orotherwise without prior written permission from BSI. This does not preclude the free use, in the course of implementing the standard of necessarydetails such as symbols, and size, type or grade designations. If these details are to
36、 be used forany other purpose than implementation then the prior written permission of BSI must beobtained. Details and advice can be obtained from the Copyright & Licensing Manager.Tel: +44 (0)20 8996 7070 Email: WB9423_BSI_StandardColCov_noK_AW:BSI FRONT COVERS 5/9/08 12:55 Page 2Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 02/03/2009 02:48, Uncontrolled Copy, (c) BSI
