1、CEN EN*212Z 96 m 3404589 0328377 573 BRITISH STANDARD AEROSPACE SERIES Washers, flat, in aluminium alloy, anodized or chromated The European Standard EN 2122 : 1996 has the status of a British Standard ICs 49.040.20 BS EN 2122 : 1996 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT
2、 LAW =sw*Kd3mFzE =ir*%w -=*3- CEN ENb2L22 9b 3404589 0128378 40T = Amd. No. The following BSI references relate to the work on this standard BS EN 2122 : 1996 Date Text affected Committees responsible for this British Standard The prep for use underneath bolt heads the compatibility shall be checked
3、. 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revis
4、ions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 2000 Aerospace series - Quality assurance - EN aerospace products - Approval of the quality sy
5、stem of manufacturers EN 2090 Aerospace series - Aluminium alloy 2024-T3 - Clad sheet and strip - 0.4 5 a 6 mm EN 2091 Aerospace series - Aluminium alloy 2024-T4 - Clad sheet and strip - 0,4 5 a 5 6 mrn _. e EN 2101 EN 2284 Aerospace series - Chromic acid anodizing of aluminium and wrought aluminium
6、 alloys Aerospace series - Sulphuric acid anodizing of aluminium and wroupht aluminium alloys - - - EN 2319 Aerospace series - Aluminium alloy 2024-T3510 - Drawn bar a 5 75 mm ) * * EN 2320 Aerospace series - Aluminium alloy 2024-T4 - Drawn bar a 75 mm 1 rn EN 2424 Aerospace series - Marking of aero
7、space products EN 2437 Aerospace series - Chromate conversion coatings (yellow) for aluminium and aluminium alloys 2) 1) Published as AECMA Standard at the date of publication of this standard 2) In preparation at the date of publication of this standard - CEN EN%2122 96 3404589 0128384 703 = EN 228
8、48 EN 2437A1 EN 21018) Page 4 EN 2122 : 1996 A 8 None 3 Required characteristics 3.1 Configuration - Dimensions - Masses See figure 1 and tables 2 and 3. Dimensions and tolerances are expressed in millimetres and apply after surface treatment. 3.2 Materials EN 2090, EN 2091, EN 231 9 or EN 2320 3.3
9、Surface treatment See table 1. Table 1 I Nature 1 Code I CEN EN*2122 96 I 3404589 OL28385 64T * * IB Page 5 EN 2122 : 1996 y 9.1 Values in micrometres apply prior to surface treatment. Remove sharp edges 0.1 to 0,2 il I l Figure 1 Table 2 Diameter Dl 02 SI 10 Yo 1 code nom. I TOI. h14 I 016 1 1.8 1
10、030 035 040 050 5.5 060 070 7.5 - - - 1,6 - 10 0.5 1 12 0,5 1 1,6 2 - - - I 1) Includes also the flatness tolerance. I CEN EN*2l122 96 3404589 OL2838b 586 030 035 040 050 060 070 080 1 O0 120 140 160 180 200 220 240 270 300 330 3 60 390 i) Approximate values Page 6 EN 2122 : 1996 - 0.03 0.06 - - - -
11、 - - 0,04 0.08 - - - - - - 0.05 0,lO 0.16 - - - - - 0.08 0.15 0.24 - - - - - 1 0,ll 0.22 0,36 0.45 - - - - 0,15 0.31 0.49 0.61 - - - - 0,20 0,40 0.65 0.80 - - - - - 0.64 1.08 1,27 1.60 - - 0.92 1.48 1,85 2,30 - - - - 1.02 1.64 2,04 2,55 3,28 - - - 1.12 1,80 2,25 2,80 3,60 - - - 1.36 2.18 2.72 3.40 4
12、.35 - - - 1.77 2.83 3.54 4,42 5.66 - - - - 3,03 3.79 4,74 6.06 - - - - - 5.1 1 6,38 8,18 10.2 - - - - - - 6,39 7,9a 10.20 i2,8 - - - - 8.26 10,32 13,20 16.5 - - - - 9,35 I 11,69 14,90 18,7 - - - - 11,60 14.50 18,50 23.2 - - - - 14,lO 17,62 22,50 28,l (kg/l O00 pieces), calculated on the basis of 2.8
13、 kg/dm3, given for Table 3 CEN EN*2L22 96 m 3404589 0128387 Y12 = Page 7 EN 2122 : 1996 4 Designation EXAMPLE : Description block Identity block Number of this standard Diameter code (see table 2) Thickness code (see table 3) Surface treatment code (see table 1) NOTE : If necessary, the code i9005 s
14、hall be placed between the description block and the identity block. 5 Marking EN 2424, style G 6 Quality assurance EN 2000 CEN EN*2L22 96 W 3Y04.589 L2838B 359 BS EN 2122 : 1996 List of references See national foreword. * * rn O BSI 1996 BS EN 2122 : 1996 BSI 389 Chiswick High Road London w4 4AL BS
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