1、BS EN 3763:2010ICS 49.030.30NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDAerospace series Nuts, hexagonal, self-locking, ball seat, in heat resisting steel, MoS2lubricated Classification: 900 MPa (at ambient temperature) / 315 CThis British Standardwas publis
2、hed under theauthority of the StandardsPolicy and StrategyCommittee on 28 February2010 BSI 2010ISBN 978 0 580 70527 4Amendments/corrigenda issued since publicationDate CommentsBS EN 3763:2010National forewordThis British Standard is the UK implementation of EN 3763:2010.The UK participation in its p
3、reparation was entrusted to TechnicalCommittee ACE/12, Aerospace fasteners and fastening systems.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsi
4、ble for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.BS EN 3763:2010EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3763 January 2010 ICS 49.030.30 English Version Aerospace series - Nuts, hexagonal, self-locking, ball seat, in heat res
5、isting steel, MoS2lubricated - Classification: 900 MPa (at ambient temperature) / 315 C Srie arospatiale - crous hexagonaux, freinage interne, orientables, en acier rsistant chaud, lubrifis MoS2- Classification: 900 MPa ( temprature ambiante) / 315 CLuft- und Raumfahrt - Sechskantmuttern, selbstsich
6、ernd, fr Neigungsausgleich, aus hochwarmfestem Stahl, MoS2-geschmiert - Klasse: 900 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 Regulations which stipulate the conditions for giving this
7、 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 European Standard exists in three official versions (
8、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 the national standards bodies of Austria, Belgium, Bulg
9、aria, 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, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR
10、 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. No. EN 3763:2010: EBS EN 3763:2010EN 3763:2010 (E) 2
11、Contents Page Foreword 31 Scope 42 Normative references 43 Required characteristics .54 Designation 75 Marking .76 Technical specification .7Annex A (informative) Assembly .8BS EN 3763:2010EN 3763:2010 (E) 3 Foreword This document (EN 3763:2010) has been prepared by the Aerospace and Defence Industr
12、ies Association of Europe - Standardization (ASD-STAN). After enquiries and votes 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
13、CEN. This European Standard shall be given the status of a national standard, either 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
14、 the elements of this document may be the subject of patent rights. CEN and/or CENELEC 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 implemen
15、t this European Standard: 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, Switze
16、rland and the United Kingdom. BS EN 3763:2010EN 3763:2010 (E) 4 1 Scope This standard specifies the characteristics of self-locking hexagonal nuts with ball seat in heat resisting steel, MoS2lubricated. Classification: 900 MPa1) / 315 C2).They are intended to be used with washers to EN 3764 or suita
17、ble parts, see Annex A. 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 (including any amendments) applies. EN
18、 2424, Aerospace series Marking of aerospace products EN 2491, Aerospace series Molybdenum disulphide dry lubricants Coating methods EN 3764, Aerospace series Washers, concave, in heat resisting steel, passivated3)EN 9100, Quality Management Systems Requirements for Aviation, Space and Defense Organ
19、izations EN 9133, Aerospace series Quality management systems Qualification procedure for aerospace 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 dimensi
20、ons for bolts and nuts ISO 5858, Aerospace Nuts, self-locking, with maximum operating temperature less than or equal to 425 C Procurement specification ISO 8788, Aerospace Nuts, metric Tolerances of form and position 1) Corresponds to the minimum tensile stress which the nut is able to withstand at
21、ambient temperature without breaking or cracking when tested with a bolt of a higher strength class. 2) Maximum temperature that the nut is able to withstand, without permanent alteration to its original characteristics, after ambient temperature has been restored. The maximum temperature is conditi
22、oned by the surface treatment. 3) Published as ASD-STAN Prestandard at the date of publication of this standard. 4) Published as ASD-STAN Technical Report at the date of publication of this standard. BS EN 3763:2010EN 3763:2010 (E) 5 3 Required characteristics 3.1 Configuration Dimensions Masses See
23、 Figure 1 and Table 1. Dimensions and tolerances are expressed in millimetres and apply before MoS2lubrication. Details of form not stated are at the manufacturers option. 3.2 Tolerances of form and position ISO 8788. 3.3 Materials TR 3791. 3.4 Surface treatment EN 2491, thickness not specified. BS
24、EN 3763:2010EN 3763:2010 (E) 6 These values in micrometres apply before surface treatment. They do not apply tothreads the surface texture of which will be as achieved by usual manufacturingmethods. Remove sharp edges 0,1 to 0,4. Key 1 Marking (optional location, at the manufacturers discretion) 2 F
25、orm out-of-round in this area to achieve the self-locking torque requirement. Tooling marks are permitted in this area. 3 Spherical 4 Thread 5 Chamfer, radius or broken edge Figure 1 Table 1 Diameter code Thread a Eb FbG H J M N P RT Massc min. 0,2 max. min. min. min. min.0 0,5050 MJ50,8-4H6H 6,5 6
26、h1210,3 7,05 5,5 1,7 2 2,05 8 7,5 1,7 060 MJ61-4H5H 7,6 7 13 8,1 6,5 2,5 2,3 2,7 9 8,4 2,5 080 MJ81-4H5H 10,9 10 h1317 9,7 8,5 3 3,2 2,5 12,5 11,75 6,5 100 MJ101,25-4H5H 13,2 12 21 11,95 10,5 4 3,3 2,95 16 15,1 11,3 120 MJ121,25-4H5H 15,5 14 24 13,46 12,5 4,5 4,5 2,65 18 16,9 17,4 aIn accordance wit
27、h ISO 5855-2. In the self-locking zone, the tolerances apply before forming out-of-round. bThese dimensions apply before forming out-of-round, but finished nuts shall fit a standard socket wrench. cApproximate values (kg/1 000 pieces), given for information purposes only. 6,3 1,6 BS EN 3763:2010EN 3
28、763:2010 (E) 7 4 Designation EXAMPLE Description block NUT Identity block EN3763060 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 plus diameter code. See
29、 Figure 1. 6 Technical specification ISO 5858, except for: Approval of manufacturers: see EN 9100; Qualification of products, nut and washer (EN 3764): see EN 9133. BS EN 3763:2010EN 3763:2010 (E) 8 Annex A (informative) Assembly A.1 Dimensions See Figure A.1 and Table A.1. Figure A.1 Table A.1 Diam
30、eter code V max. W min. 050 8,25 3,05 060 9,1 3,5 080 11,4 4 100 13,95 4,75 120 16,25 5,25 BS EN 3763:2010EN 3763:2010 (E) 9 A.2 Examples See Figures A.2 and A.3. Figure A.2 Figure A.3 BS EN3763:2010BSI GroupHeadquarters 389Chiswick High Road,London, W4 4AL, UKTel +44 (0)20 8996 9001Fax +44 (0)20 89
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