1、BS EN 3750:2010ICS 49.030.30NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDAerospace series Nuts, anchor, self locking, fixed, 90corner, reduced series, with counterbore, in heat resisting steel, MoS2lubricated Classification: 1 100 MPa (at ambient temperature)
2、 / 315 CLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 07:48, Uncontrolled Copy, (c) BSIThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 28 February2010 BSI 2010ISBN 978 0 580 70528 1Amendments/corrigenda issued since publicatio
3、nDate CommentsBS EN 3750:2010National forewordThis British Standard is the UK implementation of EN 3750:2010.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/12, Aerospace fasteners and fastening systems.A list of organizations represented on this committee can be obta
4、ined onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDA
5、RDS, 07/06/2010 07:48, Uncontrolled Copy, (c) BSIBS EN 3750:2010EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3750 January 2010 ICS 49.030.30 English Version Aerospace series - Nuts, anchor, self-locking, fixed, 90 corner, reduced series, with counterbore, in heat resisting steel, MoS2lubrica
6、ted - Classification: 1 100 MPa (at ambient temperature) / 315 C Srie arospatiale - crous river, freinage interne, fixes, dangle 90, srie rduite, avec chambrage, en acier rsistant chaud, lubrifis MoS2- Classification: 1 100 MPa ( temprature ambiante) / 315 C Luft- und Raumfahrt - Annietmuttern, selb
7、stsichernd, einseitiger verkrzter 90 Eckflansch, mit zylindrischer Aussenkung, aus hochwarmfestem Stahl, MoS2-geschmiert - Klasse: 1 100 MPa (bei Raumtemperatur) / 315 C This European Standard was approved by CEN on 4 December 2009. CEN members are bound to comply with the CEN/CENELEC Internal Regul
8、ations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member. This
9、European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions. CEN members are th
10、e national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, S
11、witzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref.
12、No. EN 3750:2010: ELicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 07:48, Uncontrolled Copy, (c) BSIBS EN 3750:2010EN 3750:2010 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Required characteristics .54 Designation 75 Marking .76 Technical specification .7License
13、d Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 07:48, Uncontrolled Copy, (c) BSIBS EN 3750:2010EN 3750:2010 (E) 3 Foreword This document (EN 3750:2010) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes
14、carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, eith
15、er by publication of an identical text or by endorsement, at the latest by July 2010, and conflicting national standards shall be withdrawn at the latest by July 2010. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CEN
16、ELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Repub
17、lic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARD
18、S, 07/06/2010 07:48, Uncontrolled Copy, (c) BSIBS EN 3750:2010EN 3750:2010 (E) 4 1 Scope This standard specifies the characteristics of 90 corner, reduced series, counterbored fixed anchor nuts, with a self-locking feature achieved by forming the upper portion out-of-round, in heat resisting steel,
19、MoS2lubricated. Classification: 1 100 MPa1) / 315 C2). 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (includ
20、ing any amendments) applies. EN 2398, Aerospace series Heat resisting steel FE-PA2601 (X6NiCrTiMoV26-15) Rm 900 MPa Bars for machined bolts D 25 mm EN 2399, Aerospace series Heat resisting steel FE-PA2601 (X4NiCrTiMoV26-15) Rm 900 MPa Bars for forged bolts D 25 mm EN 2424, Aerospace series Marking o
21、f aerospace products EN 2491, Aerospace series Molybdenum disulphide dry lubricants Coating methods EN 3638, Aerospace series Heat resisting alloy FE-PA2601 (X6NiCrTiMoV26-15) Consumable electrode remelted Solution and precipitation treated Sheet, strip and plate 0,5 mm a 10 mm EN 3639, Aerospace se
22、ries Heat resisting alloy FE-PA2601 Softened and cold worked Wire for forged fasteners D 15 mm 900 MPa Rm 1100 MPa3)EN 9100, Quality Management Systems Requirements for Aviation, Space and Defense Organizations EN 9133, Aerospace series Quality management systems Qualification procedure for aerospac
23、e standard parts TR 3791, Aerospace series Materials for self-locking nuts, threaded inserts and screw thread inserts of temperature classes 425 C4) ISO 5855-2, Aerospace MJ threads Part 2: Limit dimensions for bolts and nuts ISO 5858, Aerospace Nuts self-locking, with maximum operating temperature
24、less than or equal to 425 C Procurement specification ISO 8788, Aerospace Nuts, metric Tolerances of form and position ISO 9156, Aerospace series Nuts, anchor, self-locking, fixed, 90 corner, reduced series, with counterbore, with MJ threads, classifications: 1 100 MPa (at ambient temperature)/235 C
25、, 1 100 MPa (at ambient temperature)/315 C and 1 100 MPa (at ambient temperature)/425 C Dimensions 1) Corresponds to strength class of the associated bolt, the 100 % load of which it is able to withstand, when tested at ambient temperature, without breaking or cracking. 2) Maximum temperature that t
26、he nut is able to withstand, without permanent alteration to its original characteristics, after ambient temperature has been restored. The maximum temperature is conditioned by the surface treatment. 3) Published as ASD-STAN standard at the date of publication of this standard. 4) Published as ASD-
27、STAN Technical Report at the date of publication of this standard. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 07:48, Uncontrolled Copy, (c) BSIBS EN 3750:2010EN 3750:2010 (E) 5 3 Required characteristics 3.1 Configuration Dimensions Masses See Figure 1 and Table 1. Dimensions
28、and tolerances are in conformity with ISO 9156, expressed in millimetres and apply before MoS2lubrication. Form and position tolerances shall be in conformity with ISO 8788 and those specified in Table 1. 3.2 Materials EN 2398, EN 2399, EN 3638, EN 3639 or TR 3791. 3.3 Surface treatment EN 2491, thi
29、ckness not specified. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 07:48, Uncontrolled Copy, (c) BSIBS EN 3750:2010EN 3750:2010 (E) 6 These values in micrometres apply before surface treatment. The values do not apply to threads and sheared edges the surface texture of which wil
30、l be achieved by usualmanufacturing methods. Remove sharp edges 0,1 to 0,4. Details of form not stated are at the manufacturers option. Key 1 Marking 2 Radius or chamfer 3 Thread 4 Form out-of-round in this area to achieve self-locking. Tolling marks are permitted in this area. Figure 1 Table 1 Diam
31、eter code Thread aE F G H J bK L M N cR Mass kg/1 000 pieces approx. min. min. max. max. max. max. max. aux. 040 MJ40,7-4H6H 6 8,5 4,4 2,2 6,2 4 12,7 5,8 1 2,51,0 050 MJ50,8-4H6H 7 9,9 5,5 2,4 7,3 4,5 14,2 6,9 1,3 060 MJ61-4H5H 8 11,3 6,5 2,78,7 5 16,2 8,1 1,2 31,8 aIn accordance with ISO 5855-2. In
32、 the self-locking zone, the tolerances apply before forming out-of-round. bIs to sharp corners (chamfered) or point of tangency (radiused). cIs applicable at the rivet hole location. 6,3 3,2 Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 07:48, Uncontrolled Copy, (c) BSIBS EN 3750
33、:2010EN 3750:2010 (E) 7 4 Designation EXAMPLE Description block NUT Identity block EN3750060 Number of this standard Diameter code (see Table 1) NOTE If necessary the originator code I9005 shall be placed between the description block and the identity block. 5 Marking EN 2424, style N. See Figure 1.
34、 6 Technical specification ISO 5858, except for: Approval of manufacturers: see EN 9100; Qualification of products: see EN 9133. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 07:48, Uncontrolled Copy, (c) BSIBS EN3750:2010BSI GroupHeadquarters 389Chiswick High Road,London, W4 4AL
35、, UKTel +44 (0)20 8996 9001Fax +44 (0)20 8996 - British Standards InstitutionBSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at theinternational level. It is incorporated by Royal Charter.RevisionsBritish Standards
36、are updated by amendment or revision. Users of BritishStandards should make sure that they possess the latest amendments oreditions.It is the constant aim of BSI to improve the quality of our products and services.We would be grateful if anyone finding an inaccuracy or ambiguity while usingthis Brit
37、ish Standard would inform the Secretary of the technical committeeresponsible, the identity of which can be found on the inside front cover. Tel:+44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400.BSI offers members an individual updating service called PLUS which ensuresthat subscribers automatically rec
38、eive the latest editions of standards.Buying standardsOrders for all BSI, international and foreign standards publications should beaddressed to Customer Services. Tel: +44 (0)20 8996 9001. Fax: +44 (0)20 89967001 Email: You may also buy directly using a debit/creditcard from the BSI Shop on the We
39、bsite http:/ response to orders for international standards, it is BSI policy to supply theBSI implementation of those that have been published as British Standards,unless otherwise requested.Information on standardsBSI provides a wide range of information on national, European andinternational stan
40、dards through its Library and its Technical Help to ExportersService. Various BSI electronic information services are also available whichgive details on all its products and services. Contact Information Centre. Tel:+44 (0)20 8996 7111 Fax: +44 (0)20 8996 7048 Email: Subscribing members of BSI are
41、kept up to date with standards developmentsand receive substantial discounts on the purchase price of standards. For detailsof these and other benefits contact Membership Administration. Tel: +44 (0)208996 7002 Fax: +44 (0)20 8996 7001 Email: Information regarding online access to British Standards
42、via British StandardsOnline can be found at http:/ information about BSI is available on the BSI website at http:/.CopyrightCopyright subsists in all BSI publications. BSI also holds the copyright, in theUK, of the publications of the international standardization bodies. Except aspermitted under th
43、e Copyright, Designs and Patents Act 1988 no extract maybe reproduced, stored in a retrieval system or transmitted in any form or by anymeans electronic, photocopying, recording or otherwise without prior writtenpermission from BSI.This does not preclude the free use, in the course of implementing t
44、he standard,of necessary details such as symbols, and size, type or grade designations. Ifthese details are to be used for any other purpose than implementation then theprior written permission of BSI must be obtained.Details and advice can be obtained from the Copyright and Licensing Manager.Tel: +44 (0)20 8996 7070 Email: Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 07/06/2010 07:48, Uncontrolled Copy, (c) BSI
