1、-I-_. AECMA PREN2137 82 1OL2311 00077Y 3 -1 I A.E.C.M.A. STANDARD NORME A.E.C.M.A. A.E.C.M.A. NORM pr E N2 139 Edition 1 November 1982 ENGLISH VERSION WASHERS, FLAT, HEAT RESISTING STEEL AEROSPACE SERIES ROND ELLES PLATES EN ACIER RESISTANT A CHAUD SERIE AEROSPATIALE LUFT- UND RAUMFAHRT SCHEIBEN AUS
2、 HOCHWARMFESTEM STAHL This industrial standard for the aerospace sector has been drawn up under the responsibility of AECMA (Association Europenne des Constructeurs de Matriel Arospatial). It is published on yellow paper in three equivalent versions (English, French, German). It will be submitted to
3、 CEN (European Committee for Standardization) as a draft European Standard. -. Approved by The equivalent versions in French and German languages COMITE DE NORMALISATION can be supplied by B.NA., 8, rue Moreau-Vduthier of A.E.MA. 1981-12-04 92100 BOULOGNE-BILLANCOURT - FRANCE. COPYRIGHT Association
4、Europeene Des Constructeurs de Materiel AerospaceLicensed by Information Handling Servicest CONTENTS 1 SCOPE AND FIELD OF APPLICATION 2 REFERENCES 3 MATERIALS AND SURFACE TREATMENT 4 REQUIRED CHARACTERISTICS 5 DESIGNATION 6 MARKING COPYRIGHT Association Europeene Des Constructeurs de Materiel Aerosp
5、aceLicensed by Information Handling ServicesAECMA PREN2139 82 M I0123LL 0007750 I M prEN2139 Paga 3 A.E.C.M.A. STANDARD prEN2139 WASHERS, FLAT, HEAT RESISTING STEEL 1 SCOPE AND FIELD OF APPLICATION This standard specifies the characteristics of flat heat resisting Steel washers for use in aerospace
6、applications, at temperatures below 650 “C. They are intended for use primarily underneath nuts, for use underneath bolt heads the compatibility must be checked. 2 REFERENCES EN2171, Heat resisting steel FE-PA92HT - Rm a900 MPa - Bars EN2175, Heat resisting steel FE-PA93HT, solution treated and prec
7、ipitatioc treated - Sheets and strips a 3 mm EN2424, Identification marking of standard fasteners EN2516, Passivation of corrosion resisting steels l) 3 MATERIALS AND SURFACE TREATMENT 3.1 Materials n Heat resisting steel EN2171 or EN2175 3.2 Surface treatment Passivation EN2516 I). i) In preparatio
8、n. COPYRIGHT Association Europeene Des Constructeurs de Materiel AerospaceLicensed by Information Handling ServicesAECMA PREN2139 82 m 1012311 0007751 3 m 3 2 3,7 4,3 5,5 6,5 7,5 8,5 10,5 12,5 14,5 prEN2139 Page 4 H13 4 REQUIRED CHARACTERISTICS 4.1 Configuration - Dimensions - Tolerances Configurati
9、on shall correspond with the figure ; dimensions and tolerances shall correspond to the figure and table 1 and 2. These dimensions apply after passivation. 4.2 Surface roughness Ra=6,3pm all over except where specified. The values apply prior to passivation. Break all corners 0,l to 0,2 mm Diameter
10、code 016 020 025 030 035 040 050 060 070 080 1 O0 120 140 1 GO 180 200 220 _ 240 - - 270 300 330 A I tol. 18.5 I -i-/ 20 5 H14 22.5 245 27,5 30.5 33,5 36,5 39.5 - - - Both faces FIGURE -Configuration TABLE 1 - Dimensions - Tolerances Dimensions in millimetres B h14 3 2 4 5 6 7 8 10 12 14 16 20 24 26
11、 28 31 35 37 42 47 53 57 63 - - G9 F C-1.10% Ix 0,5 1 0,5 1 0,5 1 0,5 1 0,5 1 -1 - - - - - -I- -I- Y 0,18 0,25 COPYRIGHT Association Europeene Des Constructeurs de Materiel AerospaceLicensed by Information Handling ServicesAECMA PREN2139 82 m 1012311 0007752 5 m - C 0,4 0,5 1 ,o 16 2 ,o 2,5 Thicknes
12、s Code 04 05 10 16 20 25 prEN2139 Page 5 3.2 4 ,o 32 40 TABLE 2 -Thickness cede and masses Diameter code Masses (7,95 kg/dm3 1 kg/1000 pieces = - - - 016 0,017 020 I 0.028 I - I - I - 050 060 070 I I - 0,2 1 0,43 0,69 - 0,31 0,82 1 ,o0 - 0,43 0,86 1,37 040 I - 1 0.14 I 0.28 I 0.45 5,70 6,27 7,58 9,8
13、6 10,57 14.26 - 9,15 . 15,80 - 080 - 0,56 1,13 1,80 1 O0 I - I - I 1.77 I 2.84 . .- 17,80 23,02 26.06 120 I - I - 1 2157 I 4112 - 28,52 35,60 - 36,89 46,04 - 41.76 52.12 140 - - 2,85 4,57 160 1 - I - I 3114 1 5102 Description block WASHER 3,79 6,07 4,93 7,90 - 8,47 Identity block EN21 39.08020 I -1-
14、1-1-1 - - 3,55 4,44 5.14 1- 6.43 1 - 1 - I 32,30 - 51,77 64,61 39,22 . 1 - I 6;85 I 78143 I 5 DESIGNATION Each washer shall only be designated as in the following example : Number of EN standard 080 = Diameter code (see table 1) 20 = Thickness code (see table 2) NOTE : If necessary the originator code S 9005 may be introduced between the description block and the identity block. 6 MARKING EN2424 ,style G. In addition, the quantity shall be introduced (Mass or number). _- I . COPYRIGHT Association Europeene Des Constructeurs de Materiel AerospaceLicensed by Information Handling Services
