1、BRITISH STANDARD AEROSPACE SERIESBS EN2645:2005Lockrings for adaptors, threaded, with lockring DimensionsThe European Standard EN 2645:2005 has the status of a British StandardICS 49.030.99g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g5
2、1g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 2645:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 April 2006 BSI 2006ISBN 0 580 47950 1National forewordThis British Standard is the offi
3、cial English language version of EN 2645:2005. The UK participation in its preparation was entrusted to Technical Committee ACE/69, Aerospace hydraulic systems, fluids and components, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to
4、 its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electroni
5、c Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to unders
6、tand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK.Summary of pagesThis document comprises a fro
7、nt cover, an inside front cover, the EN title page, pages 2 to 5 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 2645December 20
8、05ICS 49.030.99English VersionAerospace series - Lockrings for adaptors, threaded, withlockring - DimensionsSrie arospatiale - Raccords droits mtriques avec baguede scurit - Bague de scurit - DimensionsLuft- und Raumfahrt - Sicherungsringe fr geradeEinschraubverschraubungen mit Sicherungsring - MaeT
9、his European Standard was approved by CEN on 28 October 2005.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 refere
10、nces concerning such nationalstandards may be obtained on application to the Central Secretariat 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 i
11、ts own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxem
12、bourg, Malta, Netherlands, Norway, Poland, Portugal, 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 2005 CEN All rights of exploi
13、tation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 2645:2005: E2 Contents Page Foreword 3 1 Scope .4 2 Required characteristics 4 3 Designation .5 EN 2645:20053 Foreword This European Standard (EN 2645:2005) has been prepared by the European Association of Aer
14、ospace Manufacturers - Standardization (AECMA-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has re-ceived the approval of the National Associations and the Official Services of the member countries of AECMA, prior to its presentation to
15、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 June 2006, and conflicting national standards shall be withdrawn at the latest by June 2006. Attention is drawn to the possibility that some of
16、 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
17、t this European Standard: Austria, Belgium, Cyprus, Czech Republic, Den-mark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxem-bourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingd
18、om. EN 2645:20054 1 Scope This standard specifies the dimensional characteristics of the lockrings for adaptors, threaded, with lockring, for aerospace applications. 2 Required characteristics 2.1 Configuration Dimensions Dimensions in millimetres aOne tooth removed to identify metric items bNumber
19、of teeth n1c Number of teeth n2Figure 1 EN 2645:20055 Table 1 Dimensions in millimetres d1d2 d3 d4 d5 d6 d7l1 l2 l3n1n2 r 12CodeaDimen- sional code 0,10 0,09 0,09 0,20 min. 0,09 0,090,050,15+0,150,05+ 0,20 max. 2 2 05 077 11,10 9,30 8,70 9,70 11,00 11,70 12,90 2,35 3,85 5,30 23 17 0,15 97 79 06 098
20、13,00 11,50 10,80 11,85 12,90 13,60 14,75 2,75 4,45 6,10 27 21 0,15 95 80 08 125 16,00 13,80 13,00 14,20 15,90 16,60 17,80 3,15 5,15 7,00 31 24 0,15 95 81 10 136 17,85 15,30 14,60 15,65 17,75 18,50 19,50 3,15 5,15 7,00 40 26 0,15 100 97 12 153 19,10 17,00 16,30 17,40 19,00 19,80 21,00 3,15 5,15 7,00
21、 38 31 0,15 94 84 14 170 20,60 18,70 17,90 19,10 20,50 21,40 22,60 3,15 5,15 7,00 40 34 0,15 94 84 16 192 24,30 20,80 20,20 21,25 24,20 25,20 26,40 3,15 5,15 7,00 38 30 0,20 111 99 18 214 25,70 23,80 22,70 24,15 25,60 26,60 28,00 3,15 5,15 7,00 43 36 0,20 94 84 20 231 28,05 24,80 24,20 25,20 27,95 2
22、8,90 30,20 3,15 5,15 7,00 46 38 0,20 93 93 22 253 31,45 27,30 26,30 27,70 31,35 32,20 33,70 3,15 5,15 7,00 36 36 0,20 111 100 25 295 34,70 31,30 29,90 31,80 34,60 35,60 37,00 3,15 5,15 7,00 47 38 0,20 93 85 28 320 38,45 33,50 32,60 33,90 38,35 39,40 40,70 3,15 5,15 7,00 32 42 0,20 111 102 32 350 40,
23、70 37,50 36,05 37,85 40,60 41,60 43,00 3,15 5,15 7,00 53 46 0,20 93 86 aCorresponds to the pipe nominal outside diameter. 2.2 Surface roughness According to Figure 1, unless otherwise specified in the design documentation. 3 Designation EXAMPLE Description block Identity block LOCKRING EN 2645 10 Nu
24、mber of this standard Code (see Table 1) EN 2645:2005BS EN 2645:2005BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. I
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