1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 3707:2012Aerospace series Headlessthreaded plugs InstallationholesBS EN 3707:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 3707
2、:2012.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 beobtained on request to its secretary.This publication does not purport to include all the necessaryprovision
3、s of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 76578 0ICS 49.030.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published unde
4、r the authority of theStandards Policy and Strategy Committee on 31 March 2012.Amendments issued since publicationDate Text affectedBS EN 3707:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3707 March 2012 ICS 49.030.20 English Version Aerospace series - Headless threaded plugs - Installat
5、ion holes Srie arospatiale - Bouchons filets, sans tte - Trous dimplantation Luft- und Raumfahrt - Verschlussschraube ohne Kopf - Einbaulcher This European Standard was approved by CEN on 23 December 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the
6、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-CENELEC Management Centre or to any CEN member. This European Standard e
7、xists 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-CENELEC Management Centre has the same status as the official versions. CEN members are the national
8、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, Switzerland,
9、 Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No.
10、 EN 3707:2012: EBS EN 3707:2012EN 3707:2012 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Required characteristics .43.1 Configuration Dimensions Tolerances 43.2 Profile trimming .44 Installation 54.1 Hole dimension 54.2 Special location conditions 65 Designation 76 Indications on
11、 drawings Examples .8BS EN 3707:2012EN 3707:2012 (E) 3 Foreword This document (EN 3707:2012) 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 Association, this Stan
12、dard 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 endorsement, at the latest
13、 by Septembre 2012, and conflicting national standards shall be withdrawn at the latest by September 2012. 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 identifying any or all
14、 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 Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hung
15、ary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 3707:2012EN 3707:2012 (E) 4 1 Scope This European Standard specifies the dimensions of the installa
16、tion holes for headless plugs to EN 3706 for sealing drilled fluid systems. The maximum operating temperature is 200 C. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, on
17、ly the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 3706, Aerospace series Headless threaded plugs, cross recess, in aluminium alloy 50861)ISO 5855-1, Aerospace MJ Threads Part 1: General requirements 3 Required c
18、haracteristics 3.1 Configuration Dimensions Tolerances Configuration: See figure 1. Dimensions and tolerances: See figure 1 and table 1. Dimensions are in millimetres. 3.2 Profile trimming The plug is fitted in recess with respect to the surface and the profile does not need to be trimmed except whe
19、n the plugging concerns the air duct surface. 1) Published as ASD-STAN pre-standard at the date of publication of the present standard. BS EN 3707:2012EN 3707:2012 (E) 5 4 Installation 4.1 Hole dimension Figure 1 BS EN 3707:2012EN 3707:2012 (E) 6 Table 1 Dia. code Da A B Tol R Tol TbTol Zc02,0+H11 m
20、ini 060 MJ61,00 4g5g 6 4,9 0075,0+6 05,1+10,50 05,1+8 070 MJ71,00 4g5g 7 5,9 7 11,50 9 080 MJ81,00 4g5g 8 6,9 0090,0+8 12,50 9,5 100 MJ101,00 4g5g 10 8,9 10 14,50 10,7 120 MJ121,00 4g5g 12 10,4 0110,0+12 025,2+18,75 025,2+11,7 140 MJ141,00 4g5g 14 14,4 14 20,75 13 160 MJ161,00 4g5g 16 14,4 16 22,75
21、14 180 MJ181,00 4g5g 18 16,4 18 24,75 15 200 MJ201,00 4g5g 20 18,4 0130,0+20 26,75 16aBasic profile is in conformity with ISO 5855-1. bUse when the of the duct C of the tapping pilot hole B (use only when strictly necessary). cTo allow repair with a plug the next size up. 4.2 Special location condit
22、ions Figure 2 Figure 3 In the case of oblique drilling on a flat or distorted surface, the material thickness surrounding the plug shall permit the use of a repair plug the next size up. BS EN 3707:2012EN 3707:2012 (E) 7 Key 1 Trimming after installation Figure 4 The solution in Figure 4 shall remai
23、n exceptional and if possible having F + X R. The dimension F shall be such that the plug has, at least, 4 complete threads in the receptacle. In this case, to avoid a protrusion, the plug shall be machine flushed. 5 Designation EXAMPLE Description block Installation hole Identity block EN3707060 Nu
24、mber of this standard Diameter code (see Table 1) NOTE If necessary, the originator code 19005 shall be placed between the description block and the identity block. BS EN 3707:2012EN 3707:2012 (E) 8 6 Indications on drawings Examples Key 1 Installation hole EN 3707-080 Figure 5 This page deliberatel
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