1、 CEN EN*Z906 94 = 3404589 0079597 762 = BRITISH STANDARD AEROSPACE SERIES Nuts, bihexagonal, self-locking, in heat resisting steel FE-PA92HT (A286) Classification : 1 100 MPa (at ambient temperature)/650 OC The European Standard EN 2906 : 1994 has the status of a British Standard UDC 21 882 3-034.01
2、8 44 629 7 BS EN 2906 : 1994 CEN EN*290b 94 m 3404589 0079598 bT9 m BS EN 2906 : 1994 comes into effect on 15 December 1994 Amd. No. Date (c) BSI 1994 The following BSI references relate to the work on this standard: Committee reference ACE/ 12 Draft for comment 66/76214 DC Cooperating organizations
3、 Text affected The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following countries: Austria Belgium Denmark Finland France Germany Greece Iceland Ireland Italy Luxembourg Netherlands
4、Norway Portugal Spain Sweden Switzerland United Kingdom Oesterreichisches Normungsinstitut Institut belge de normalisation Dansk Standard Suomen Standardisoimisliito, r. y. Association fraqaise de normalisation Deutsches Institut fr Normung e.V. Hellenic Organization for Standardization Technologica
5、l Institute of Iceland National Standards Authority of Ireland Ente Nazionale Italiano di Unificazione Inspection du Travail et des Mines Nederlands Normalisatie-instituut Norges Standardiseringsforbund Instituto Portugus da Qualidade Asociacin Espaola de Normalizacin y Certificacin Standardiserings
6、kommissionen i Sverige Association suisse de normalisation British Standards Institution ISBN O 580 22617 4 CEN EN*:290b 94 H 3404589 0077597 535 a BS EN 2906 : 1994 _ Contents Cooperating organizations National foreword Page Inside front page i Foreword Specification 1 Scope 2 Normative references
7、3 Required characteristics 4 Designation 5 Marking 6 %chnical specification 2 National annexes NA (informative) Committees responsible NB (informative) Cross-reference Inside back page Inside back page National foreword This British Standard has been prepared under the direction of the Aerospace Sta
8、ndards Policy Committee and is the English language version of EN 2906 : 1994 Amspace series - Nuts, bihemgonal, self-locking, in heat resisting steel FE-PA92HT (A286) Classification : 1 1 O0 MPa (at ambient temperature)/650 OC, published by the European Committee for Standardization (CEN). EN 2906
9、: 1994 was produced as a result of international discussions in which the United Kingdom took an active part. Compliance with a British Standard does not of itself confer immunity from legai obligations. 1 CEN ENt290b 94 3404589 0079b00 087 W EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2906
10、 August 1994 UDC 621.882.3-034.018.44 : 629.7 Descriptors: Aircraft industry, fastener, double hexagonal nut, self locking nut, heat resistant steel, classification, characteristic, dimension, screw thread, code, designation, marking English version Aerospace series Nuts, bihexagonal, self-locking,
11、in heat resisting steel Classification: 1 100 MPa (at ambient temperature)/650 OC FE-PA92HT (A286) Srie arospatiale Luft-und Raumfahrt Ecrous bihexagonaux, freinage interne, en acier rsistant chaud FE-PA92HT (A286) Classification : 1 100 MPa ( temprature ambiante)/650 OC Raumtemperatur)/650 OC Zwlfk
12、antmuttern, selbstsichernd, aus hochwarmfestem Stahl FE-PA92HT (A286) Klasse: 1 100 MPa (bei This European Standard was approved by CEN on 1994-08-17. CEN members are bound to comply with the CENCENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status
13、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 Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A vers
14、ion in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Gre
15、ece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels O 1994 Copyright r
16、eserved to CEN members Ref. No. EN 2906 : 1994 E Previous page is blank CEN EN*290b 94 3404589 0079601i TL3 Page 2 EN 2906 : 1994 Foreword This European Standard has been prepared by the European Association of Aerospace Manufacturers ( AECMA) . After enquiries and votes carried out in accordance wi
17、th the rules of this Association, this standard has successively received the approval of the National Associations and the Official Services of the member countries of AECMA, prior to its presentation to CEN. This standard was submitted for Formal Vote, and the result was positive. This European St
18、andard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 1995, and conflicting national standards shall be withdrawn at the latest by February 1995. According to the CENKENELEC Internal Regulations, the following
19、 countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, United Kingdom. CEN EN*2906 94 3404589 0079602 95T W Page 3 EN 2906 : 1993 1 Scope Th
20、is standard specifies the characteristics of self-locking bihexagonal nuts in FE-PA92HT for aerospace applications. Classification : 1 1 O0 MPa ) / 650 OC *) 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publications. These normative r
21、eferences are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references
22、the latest edition of the publication referred to applies. IS0 4095 IS0 5855-2 EN 2399 EN 2424 EN 3004 EN 3639 Fasteners for aerospace construction - Bi-hexagonal wrenching configuration Aerospace - MJ threads - Part 2 : Limit dimensions for bolts and nuts Heat resisting steel FE-PA92-HT - R, 2 900
23、MPa - Bars for forged bolts - D 5 25 mm - Aerospace series 3, Aerospace series - Marking of aerospace products 3, Aerospace series - Nuts, self-locking, in heat resisting steel FE-PA92HT (A2861 - Classification : 1 100 MPa / 650 OC - Technical specification 4, Aerospace series - Heat resisting alloy
24、 FE-PA2601 - Softened and cold worked - Wire for forged fasteners - D 5 15 mm - 900 MPa 5 R, 5 1 1 O0 MPa 4, 3 Required characteristics 3.1 See figure 1 and table 1. Dimensions and tolerances are in millimetres. 3.2 Materials EN 2399 or EN 3639 Configuration - Dimensions - Tolerances - Masses 1 The
25、strength class of the bolt concerned which can withstand the load at ambient temperature when tested at 100 % load without cracking or breaking of the nut. 21 Maximum test temperature of the pans 3) Published as AECMA Standard at the date of publication of this srandard 4) Published as AECMA Prestan
26、dard at the dare of publication of this standard CEN EN*2906 94 m 3404589 0079603 89b m Page 4 EN 2906 : 1993 Threod surface VI LI be as achieved by Firm out-of-round In thlr area :o achlere tht sell-locklng requ I rewn t (tooling morkr y ( v/ ) normt methods of manufacture. 11 All forms of entry (r
27、adius or chamfer) are permissible within these limiting dimensions. Remove sharp edges 0,l to 0,4 Details of form not stated are left to the manufacturers discretion. Figure 1 Table 1 CEN EN*290b 94 = 340Y589 007bOY 722 W Description block Page 5 EN 2906: 1993 Identity block 4 Designation EXAMPLE :
28、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 figure 1 6 Technical specification EN 3004 CEN EN+290b 94 3404589 0079b05 bb9 BS EN 2906 : 1994 National annex NA (informative) Committees responsible
29、 The United Kingdom participation in the preparation of this European Standard was entrusted by the Aerospace Standards Policy Committee (ACE/-) to Technical Committee ACE/ 12, upon which the following bodies were represented: Association of Electronics, Telecommunications and Business Equipment Ind
30、ustries British Industrial Fasteners Federation Ministry of Defence Society of British Aerospace Companies Ltd. National annex NB (informative) Cross-reference The British Standard corresponding to the international standard referred to in the text is as follows: International standard Corresponding
31、 British Standard IS0 5855-2 : 1988 13s 6293 MJ threads for aerospace construction Part 2 : 1982 Speci,fzcation.for dimensions for bolts and nuts Previous page is blank _ - CEN ENx290b 94 3404589 0079bOb 5T5 BS EN 2906 : 1994 BSI 389 Chiswick High Road London W4 4AL 9412 - 4- 0.35k- PF BSI - British
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