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1、BRITISH STANDARD BS SP 76: 1958 Snap head steel rivets For aircraft UDC 621.884:669.14:629.13 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:19:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS SP 76:1958 This British Standard, having been approved by the Air
2、craft Industry Standards Committee and endorsed by the Chairman of the Engineering Divisional Council, was published under the authority of the General Council of the Institution on 31 March 1958 BSI 02-2000 The following BSI references relate to the work on this standard: Committee reference ACE/14
3、 Draft for comment CW(ACE)9090 ISBN 0 580 34416 9 A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obli
4、gations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 3 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover
5、. Amendments issued since publication Amd. No.DateComments Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:19:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS SP 76:1958 BSI 02-2000i Contents Page 1Scope1 2Material1 3Dimensions1 4Finish1 5Identification1 6Fre
6、edom from defects1 Appendix3 Figure 11 Figure 1a1 Figure 22 Table 1 Dimensions of snap head steel rivets for aircraft1 Table 2 Standard lengths and part numbers of snap head steel rivets for aircraft2 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:19:45 GMT+
7、00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:19:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS SP 76:1958 BSI 02-20001 1 Scope This British Standard specifies the material, dimensions, finish and part numbe
8、rs of snap head steel rivets for aircraft. NOTEThe figures in British units are to be regarded as the standard. A table is given in the Appendix to provide a ready means of calculating the approximate millimetre equivalents of the inch dimensions. More accurate conversions should be based on the tab
9、les in BS 350. 2 Material The rivets shall be manufactured from material complying with the requirements of the latest issue of BS 1109, “Cold forged mild steel rivets for cold closing”. 3 Dimensions The rivets, after coating, shall conform to the dimensions specified in Table 1 and Table 2. 4 Finis
10、h The rivets shall be cadmium coated in accordance with the requirements of the latest issue of Ministry of Supply aircraft process specification D.T.D.904. 5 Identification The rivets shall be identified for ordering purposes by the number of this British Standard and the appropriate part number (s
11、ee Table 2), e.g.: A rivet 1/8 in. diameter 5/8 in. length is SP.76/410. 6 Freedom from defects a) The rivets shall be free from harmful defects. b) Rivets may be rejected at any time for faults in, or revealed by, manufacture, although they have been made from material passed previously for chemica
12、l composition and mechanical properties. Table 1 Dimensions of snap head steel rivets for aircraft Figure 1 Figure 1a Enlarged view of head. Nominal standard proportions: B = 1.75 nominal size of rival. D = 0.6 nominal size of rivet. U = 0.94 nominal size of rivet. For standard lengths see Table 2.
13、Nominal size of rivet Diameter of shank Diameter of head Depth of head Radius of head Radius under rivet head ABDUR max.min.max.min.max.min.Ref. onlymax. in.in.in.in.in.in.in.in.in. 1/16 (0.062) 3/32 (0.094) 1/8 (0.125) 0.065 0.097 0.128 0.059 0.091 0.122 0.114 0.170 0.227 0.103 0.157 0.210 0.039 0.
14、059 0.079 0.035 0.053 0.071 0.058 0.088 0.117 0.010 0.010 0.010 5/32 (0.156) 3/16 (0.187) 7/32 (0.219) 0.160 0.191 0.223 0.154 0.185 0.215 0.282 0.338 0.394 0.263 0.317 0.371 0.098 0.117 0.136 0.090 0.107 0.126 0.146 0.175 0.206 0.010 0.015 0.015 1/4 (0.250) 5/16 (0.312) 3/8 (0.375) 0.254 0.316 0.37
15、9 0.246 0.306 0.367 0.450 0.562 0.673 0.425 0.531 0.638 0.156 0.194 0.233 0.144 0.180 0.217 0.234 0.292 0.352 0.015 0.020 0.020 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:19:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS SP 76:1958 2 BSI 02-2000 Table
16、2 Standard lengths and part numbers of snap head steel rivets for aircraft Figure 2 Nominal dia. A in inches 1/163/321/85/323/167/321/45/163/8 Nominal length La PART NUMBERS The last two figures of the part numbers denote the length in 1/16 in., the remaining figure or figures denoting the diameter
17、in 1/32 in. in 1/8 3/16 1/4 202 203 204 302 303 304 403 404504 5/16 3/8 7/16 205 206 207 305 306 307 405 406 407 505 506 507 605 606 607 706 707 806 807 1 007 1/2 9/16 5/8 208 209 210 308 309 310 408 409 410 508 509 510 608 609 610 708 709 710 808 809 810 1 008 1 009 1 010 1 208 1 209 1 210 b11/16 3
18、/4 b13/16 b211 b212 b213 b311 312 b313 b411 412 b413 b511 512 b513 b611 612 b613 b711 712 b713 b811 812 b813 b1 011 1 012 b1 013 b1 211 1 212 b1 213 7/8 b15/16 1 b214 b215 b216 314 b315 316 414 b415 416 514 b515 516 614 b615 616 714 b715 716 814 b815 816 1 014 b1 015 1 016 1 214 b1 215 1 216 11/8 11
19、/4 13/8 b318 b320 b322 418 420 422 518 520 522 618 620 622 718 720 722 818 820 822 1 018 1 020 1 022 1 218 1 220 1 222 11/2 13/4 2 b324 424 428 524 528 532 624 628 632 724 728 732 824 828 832 1 024 1 028 1 032 1 224 1 228 1 232 21/2 3 640 648 740 748 840 848 1 040 1 048 1 240 1 248 a 0.010 in. for r
20、ivets of diameter up to and including 3/ 16 in.: 0.015 in. for rivets of diameter 7/32 in. and larger. b Non-preferred sizes. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:19:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS SP 76:1958 BSI 02-20003 Appendix
21、Table for conversion of inches to approximate millimetre equivalents in.mmin.mmin.mm 1/32 1/16 3/32 0.794 1.588 2.381 7/16 1/2 9/16 11.113 12.700 14.288 1 2 3 25.4 50.8 76.2 1/8 5/32 3/16 3.175 3.969 4.763 5/8 11/16 3/4 15.875 17.463 19.050 4 5 6 101.6 127.0 152.4 7/32 1/4 5/16 5.556 6.350 7.938 13/
22、16 7/8 15/16 20.638 22.225 23.813 7 8 9 177.8 203.2 228.6 3/8 9.52510254.0 Examples of use of table: 13/8 in.= 25.4 + 9.525= 34.9 mm. 0.124 in. = 2.54 + 0.508 + 0.1016 = 3.15 mm. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:19:45 GMT+00:00 2006, Uncontroll
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