1、BRITISH STANDARDBS EN 4396:2008Aerospace series Shaft-nuts, self-locking, in heat resisting steel FE-PA92HT (A286), silver platedICS 49.030.30g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g
2、60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 4396:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2008 BSI 2008ISBN 978 0 580 57070 4National forewordThis British Standard is the UK implementation of EN 4396:2008.The UK partic
3、ipation in its preparation was entrusted to Technical Committee ACE/12, Aerospace fasteners and fastening systems.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract.
4、 Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since publicationDate CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 4396March 2008ICS 49.030.30English VersionAerospace series
5、- Shaft-nuts, self-locking, in heat resistingsteel FE-PA92HT (A286), silver platedSrie arospatiale - crous darbre, freinage interne, enacier rsistant chaud FE-PA92HT (A286), argentsLuft- und Raumfahrt - Wellenmuttern, selbstsichernd, aushochwarmfestem Stahl FE-PA92HT (A286), versilbertThis European
6、Standard was approved by CEN on 26 August 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concernin
7、g such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own langu
8、age and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxem
9、bourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights
10、of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 4396:2008: E2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Required characteristics.4 3.1 Configuration - Dimensions - Tolerances - Masses.4 3.2 Material .4 3.3 Surface treatment 4 4 D
11、esignation 7 5 Marking .7 6 Technical specification .7 BS EN 4396:20083 Foreword This document (EN 4396:2008) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Assoc
12、iation, 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, either by publication of an identical text or by endorseme
13、nt, at the latest by September 2008, and conflicting national standards shall be withdrawn at the latest by September 2008. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for ident
14、ifying 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Gree
15、ce, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 4396:20084 1 Scope This standard specifies the characteristics of self-locking shaft-nuts, in FE-PA
16、2601, silver plated, metric, chiefly used for axial location of bearing inner rings on shafts. Maximum test temperature of the parts: 450 C NOTE These parts are designed to be used with 4g6g external threads. 2 Normative references The following referenced documents are indispensable for the applica
17、tion 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. ISO 5855-1, Aerospace MJ threads Part 1: General requirements. EN 2171 1), Heat resisting steel FE-PA92-HT Rm 900 MPa
18、 Bars Aerospace series. 2)EN 2424, Aerospace series Marking of aerospace products. EN 2786, Aerospace series Electrolytic silver plating of fasteners. EN 3299, Aerospace series Shaft-nuts and threaded rings, self-locking, right- or left-hand MJ threads, in heat resisting steel FE-PA2601 (A286), silv
19、er plated Technical specification. EN 4317, Aerospace series Heat resisting alloy FE-PA2601 (X6NiCrTiMoV26-15) Non heat treated Forging stock a or D 200 mm. EN 4318, Aerospace series Heat resisting alloy FE-PA2601 (X6NiCrTiMoV26-15) Solution treated and precipitation treated Bar and section De 100 m
20、m Rm 960 MPa. 3 Required characteristics 3.1 Configuration - Dimensions - Tolerances - Masses See Figure 1 and Table 1. Dimensions and tolerances are in millimetres. They apply after silver plating. 3.2 Material EN 2171 3.3 Surface treatment EN 2786 Thickness: external surfaces: 5 m to 15 m; thread:
21、 5 m min. shall be measured at the pitch diameter. 1) Inactive for new design, see EN 4317 and EN 4318. 2) Published as ASD Standard at the date of publication of this standard. BS EN 4396:20085 Values applicable before silver plating. Thread surface will be as achieved by normal methods of manufact
22、ure.Remove sharp edges 0,1 to 0,4. Key 1 N equally spaced scallops 2 30 to 60 3 Pitch diameter 4 40 to 50 5 Marking 6 Chamfer at the manufacturers discretion 7 Thread 8 R 0,5 to 0,7 Details of form not stated and self-locking feature are left to the manufacturers discretion. Figure 1 6,3 0,8 BS EN 4
23、396:20086 Table 1 ThreadaE F H J K M N P bMass kg/1 000 parts Code Designation 0,2 0 0,2 + 0,2 0,1 0,1 0,2 0,1 min. 012 MJ121,25-4H5H 12,5 6 7 3,5 10 7,5 013 MJS131,25-4H5H 13,5 7 19 18 11 8 014 MJ141,5-4H5H 14,5 20 19 11,7 8,5 015 MJ151,5-4H5H 15,5 21 20 12,7 8,9 016 MJ161,5-4H5H 16,5 22 21 13,7 9,
24、3 017 MJ171,5-4H5H 17,5 8 23 22 14,7 9,7 018 MJ181,5-4H5H 18,5 24 23 15,7 10,1 019 MJS191,5-4H5H 19,5 9 25 24 16,7 10,5 020 MJ201,5-4H5H 20,5 26 25 17,7 11 021 MJS211,5-4H5H 21,5 18,7 11,8 022 MJ221,5-4H5H 22,5 27 26 19,7 12,6 023 MJS231,5-4H5H 23,5 10 29 28 20,7 13,4 024 MJ241,5-4H5H 24,5 11 30 29
25、21,7 14,2 025 MJ251,5-4H5H 25,5 12 31 30 4 22,7 15 026 MJ261,5-4H5H 26,5 8 7,5 33 32 3,8 23,7 15,5 027 MJ271,5-4H5H 27,5 34 33 24,7 16,5 028 MJ281,5-4H5H 28,5 35 34 25,7 17,5 029 MJS291,5-4H5H 29,5 9 36 35 26,7 18 030 MJ301,5-4H5H 30,5 37 36 27,7 19 031 MJS311,5-4H5H 31,5 38 37 28,7 19,8 032 MJ321,5
26、-4H5H 32,5 39 38 29,7 20,5 033 MJ331,5-4H5H 33,5 40 39 30,7 21,5 034 MJS341,5-4H5H 34,5 41 40 31,7 22,5 035 MJ351,5-4H5H 35,5 10 42 41 32,7 23 036 MJ361,5-4H5H 36,5 43 42 33,7 23,5 037 MJS371,5-4H5H 37,5 44 43 34,7 24,5 038 MJ381,5-4H5H 38,5 11 45 44 35,7 25,5 039 MJ391,5-4H5H 39,5 46 45 36,7 26,5 0
27、40 MJ401,5-4H5H 40,5 12 8 48 47 4 6 37,7 27 a In conformity with ISO 5855-1 in none self-locking zone. b Minimum diameter of internal envelope circle after realizing self-locking feature. BS EN 4396:20087 4 Designation EXAMPLE Description block NUT Identity block EN4396040 Number of this standard Th
28、read code (see Table 1) NOTE If necessary, the code I9005 shall be placed between the description block and the identity block. 5 Marking EN 2424, style A, as indicated on the Figure 1. 6 Technical specification EN 3299 BS EN 4396:2008BS EN 4396:2008BSI389 Chiswick High RoadLondonW4 4ALBSI British S
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