1、BRITISH STANDARDBS EN 4302:2008Aerospace series Open ring insert tool, square driveICS 49.030.99g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS E
2、N 4302:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2008 BSI 2008ISBN 978 0 580 57073 5National forewordThis British Standard is the UK implementation of EN 4302:2008.The UK participation in its preparation was entrusted to Te
3、chnical 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. Users are responsible for its correct applica
4、tion.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since publicationDate CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 4302March 2008ICS 49.030.99English VersionAerospace series - Open ring insert tool, square driveSrie aros
5、patiale - Embouts cannels, tuyauter, carrconducteur axialLuft- und Raumfahrt - Ringeinsteckwerkzeug, offen,verzahntThis European 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 Eur
6、opeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning 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
7、, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language 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, Cypr
8、us, 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 STANDARDIZATIONCOMIT
9、EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 4302:2008: E2 Contents Page Foreword3 1 Scope 4 2 Normative references
10、4 3 Required characteristics.4 3.1 Configuration - Dimensions - Tolerances .4 3.2 Material .4 3.3 Hardness.4 3.4 Surface treatment 4 4 Designation 7 5 Marking .7 6 Technical specification .7 BS EN 4302:20083 Foreword This document (EN 4302:2008) has been prepared by the Aerospace and Defence Industr
11、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
12、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 September 2008, and conflicting national standards shall be withdrawn at the latest by September 2008. Attention is drawn to the possibility th
13、at some of 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 t
14、o implement this European Standard: Austria, Belgium, Bulgaria, 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, Switz
15、erland and the United Kingdom. BS EN 4302:20084 1 Scope This standard specifies the characteristics of open ring insert tools for splined nuts, metric for aerospace applications. 2 Normative references The following referenced documents are indispensable for the application of this document. For dat
16、ed references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 4156 (all parts), Straigth cylindrical involute splines Metric module, side fit. EN 2424, Aerospace series Marking of aerospace products. EN 41
17、11, Aerospace series Wrenches, splined, sockets for pipe fittings Technical specification. 3 Required characteristics 3.1 Configuration - Dimensions - Tolerances See Figures 1 and 2 and Tables 1 and 2. Dimensions and tolerances are in millimetres. 3.2 Material Material shall be corrosion resistant.
18、The actual material specification shall be the choice of the manufacturer, provided that the spanner meets the requirements of the technical specification, EN 4111. 3.3 Hardness 42 HRC 54 3.4 Surface treatment Nickel-chromium coating Nickel thickness: 5 m Chromium thickness: 0,25 m BS EN 4302:20085
19、Section AB Key 1 Rad. (2 positions) 2 Centre of origin of spline drive. For spline dimensions, see Table 2. 3 Marking 4 Retaining method at manufacturers option Drawing not to scale Dimensions not quoted are at manufacturers discretion. Dimension “A“ to be equidistant about slot centre line. Surface
20、 texture to be unless otherwise specified. Figure 1 Ra3,2 BS EN 4302:20086 Table 1 DN aA B C D E F G H1H2J K L min. max. 0,3 max. 0,01 0,2 0,01 0,2 max. max. max. max. min. h13 04 6,5 22 06 8,5 27 2 08 10,5 31 10 13 33 17,5 12 15 35 19 13 16 36 8 14 17,5 37 20 16 19,5 39 22 9 18 21,5 44 3 25 20 23,5
21、 50 5 30 22 25,5 55,5 6 33 9 12 16 14 22 11,5 4 25 28,5 63 8 35 40 32 35,5 70 9 38 14 18 25 18 10 45 15 5 aDN: Diameter Nominal (outside diameter of the corresponding pipe). Key 1 Circular space width EVEFigure 2 BS EN 4302:20087 Table 2 Splines - 45 pressure angle - side fit - fillet root - 6H tole
22、rance to ISO 4156 Circular space width m Db D Dei DFI Dii Dii Pb E EV radiusDN a Z No. teeth H10 H11 max. min. max. min. min. 04 18 9,5459 13,500 14,52 14,25 12,92 1,253 1,206 1,22506 24 12,7279 18,000 19,02 18,75 17,42 1,256 1,208 08 27 14,3189 20,250 21,28 21,00 19,66 1,257 10 30 15,9099 22,500 23
23、,53 23,25 21,91 1,258 1,209 1,22612 32 16,9706 24,000 25,03 24,75 23,41 1,210 13 34 18,0312 25,500 26,53 26,25 24,91 1,259 14 35 18,5616 26,250 27,28 27,00 25,66 1,260 1,22716 38 0,75 20,1525 28,500 29,53 29,25 27,91 1,66611,261 1,211 1,2281,178 0,19 18 32 22,6274 32,000 33,34 33,00 31,22 1,660 1,60
24、6 20 35 24,7487 35,000 36,34 36,00 34,21 1,661 22 38 26,8701 38,000 39,35 39,00 37,21 1,662 1,607 1,62525 41 1 28,9914 41,000 42,35 42,00 40,212,22141,663 1,608 1,6261,571 0,25 32 37 1,25 45 32,7037 46,2500 47,91 47,50 45,27 2,7768 2,062 2,003 2,023 1,963 0,31 aDN: Diameter Nominal (outside diameter
25、 of the corresponding pipe). Note Missing dimensions in Figure 2, see ISO 4156. 4 Designation EXAMPLE Description block WRENCH Identity block EN430210 Number of this standard DN (tube diameter code, see Tables 1 and 2) NOTE If necessary the code I9005 shall be placed between the description block an
26、d the identity block. 5 Marking EN 2424, style C, as indicated on Figure 1. 6 Technical specification EN 4111 BS EN 4302:2008BS EN 4302:2008BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It prese
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