BS-919-4-2007.pdf
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1、BS 919-4:2007 Screw gauge limits and tolerances Part 4: Limits of size for gauges for screw threads of unified form diameters in and larger ICS 21.040.10 1 4 - - NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BRITISH STANDARD Licensed Copy: London South Bank University, Londo
2、n South Bank University, Fri Nov 16 07:27:29 GMT+00:00 2007, Uncontrolled Copy, (c) BSI Publishing and copyright information The BSI copyright notice displayed in this document indicates when the document was last issued. BSI 2007 ISBN 978 0 580 57936 3 The following BSI references relate to the wor
3、k on this standard: Committee reference TDW/4 Draft for comment 07/30158519 DC Publication history First published April 1964 Second edition, October 2007 Amendments issued since publication Amd. no.DateText affected BS 919-4:2007 Licensed Copy: London South Bank University, London South Bank Univer
4、sity, Fri Nov 16 07:27:29 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BSI 2007i BS 919-4:2007 Contents Foreword iv 1Scope 1 2Terms and definitions 1 Section 1: Unified coarse threads, UNC 2 Section 2: Unified fine threads, UNF 25 Section 3: Unified extra fine threads, UNEF 42 Bibliography 62 List of
5、tables Table 1 Limits of size for GO screw plug gauges (all classes of thread) 2 Table 2 Limits of size for NOT GO screw plug gauges (low addendum and high addendum), Class 1B threads 3 Table 3 Limits of size for NOT GO screw plug gauges (low addendum and high addendum), Class 2B threads 4 Table 4 L
6、imits of size for NOT GO screw plug gauges (low addendum and high addendum), Class 3B threads 5 Table 5 Limits of size for GO and NOT GO plain plug gauges for minor diameters 6 Table 6 Limits of size for GO screw ring gauges, solid type 7 Table 7 Limits of size for NOT GO screw ring gauges, solid ty
7、pe 8 Table 8 Limits of size for GO screw check plugs for GO screw ring gauges, solid type 9 Table 9 Limits of size for NOT GO effective diameter check plugs for new GO screw ring gauges, solid type 10 Table 10 Limits of size for NOT GO effective diameter check plugs for worn GO screw ring gauges, so
8、lid type 11 Table 11 Limits of size for GO screw check plugs for NOT GO effective diameter ring gauges, solid type 12 Table 12 Limits of size for NOT GO screw check plugs for NOT GO effective diameter ring gauges, solid type 13 Table 13 Limits of size for GO and NOT GO plain check plugs for the mino
9、r diameter of GO screw ring gauges, solid type 14 Table 14 Limits of size for GO and NOT GO plain check plugs for the minor diameter of NOT GO effective diameter ring gauges, solid type 15 Table 15 Limits of size for adjustable GO screw ring and calliper gauges 16 Table 16 Limits of size for adjusta
10、ble NOT GO screw ring and calliper gauges 17 Table 17 Limits of size for double length setting plugs for adjustable GO screw ring gauges 18 Table 18 Limits of size for double length setting plugs for adjustable NOT GO screw ring gauges, Class 1A threads 19 Table 19 Limits of size for double length s
11、etting plugs for adjustable NOT GO screw ring gauges, Class 2A threads 20 Table 20 Limits of size for double length setting plugs for adjustable NOT GO screw ring gauges, Class 3A threads 21 Table 21 Limits of size for single length setting plugs for adjustable GO screw calliper gauges 22 Table 22 L
12、imits of size for single length setting plugs for adjustable NOT GO screw calliper gauges 23 Licensed Copy: London South Bank University, London South Bank University, Fri Nov 16 07:27:29 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS 919-4:2007 ii BSI 2007 Table 23 Limits of size for GO and NOT GO p
13、lain calliper (GAP) gauges for major diameters 24 Table 24 Limits of size for GO screw plug gauges (all classes of thread) 25 Table 25 Limits of size for NOT GO screw plug gauges (low addendum and high addendum), Class 1B threads 25 Table 26 Limits of size for NOT GO screw plug gauges (low addendum
14、and high addendum), Class 2B threads 26 Table 27 Limits of size for NOT GO screw plug gauges (low addendum and high addendum), Class 3B threads 26 Table 28 Limits of size for GO and NOT GO plain plug gauges for minor diameters 27 Table 29 Limits of size for GO screw ring gauges, solid type 27 Table
15、30 Limits of size for NOT GO screw ring gauges, solid type 28 Table 31 Limits of size for GO screw check plugs for GO screw ring gauges, solid type 29 Table 32 Limits of size for NOT GO effective diameter check plugs for new GO screw ring gauges, solid type 30 Table 33 Limits of size for NOT GO effe
16、ctive diameter check plugs for worn GO screw ring gauges, solid type 31 Table 34 Limits of size for GO screw check plugs for NOT GO effective diameter ring gauges, solid type 32 Table 35 Limits of size for NOT GO screw check plugs for NOT GO effective diameter ring gauges, solid type 33 Table 36 Lim
17、its of size for GO and NOT GO plain check plugs for the minor diameter of GO screw ring gauges, solid type 34 Table 37 Limits of size for GO and NOT GO plain check plugs for the minor diameter of NOT GO effective diameter ring gauges, solid type 35 Table 38 Limits of size for adjustable GO screw rin
18、g and calliper gauges 36 Table 39 Limits of size for adjustable NOT GO screw ring and calliper gauges 36 Table 40 Limits of size for double length setting plugs for adjustable GO screw ring gauges 37 Table 41 Limits of size for double length setting plugs for adjustable NOT GO screw ring gauges, Cla
19、ss 1A threads 38 Table 42 Limits of size for double length setting plugs for adjustable NOT GO screw ring gauges, Class 2A threads 38 Table 43 Limits of size for double length setting plugs for adjustable NOT GO screw ring gauges, Class 3A threads 39 Table 44 Limits of size for single length setting
20、 plugs for adjustable GO screw calliper gauges 39 Table 45 Limits of size for single length setting plugs for adjustable NOT GO screw calliper gauges 40 Table 46 Limits of size for GO and NOT GO plain calliper (GAP) gauges for major diameters 41 Table 47 Limits of size for GO screw plug gauges (Clas
21、ses 2B and 3B threads) 42 Table 48 Limits of size for NOT GO screw plug gauges (low addendum and high addendum), Class 2B threads 43 Table 49 Limits of size for NOT GO screw plug gauges (low addendum and high addendum), Class 3B threads 44 Table 50 Limits of size for GO and NOT GO plain plug gauges
22、for minor diameters 45 Licensed Copy: London South Bank University, London South Bank University, Fri Nov 16 07:27:29 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BSI 2007iii BS 919-4:2007 Table 51 Limits of size for GO screw ring gauges, solid type 46 Table 52 Limits of size for NOT GO screw ring gau
23、ges, solid type 47 Table 53 Limits of size for GO screw check plugs for GO screw ring gauges, solid type 48 Table 54 Limits of size for NOT GO effective diameter check plugs for new GO screw ring gauges, solid type 49 Table 55 Limits of size for NOT GO effective diameter check plugs for worn GO scre
24、w ring gauges, solid type 50 Table 56 Limits of size for GO screw check plugs for NOT GO effective diameter ring gauges, solid type 51 Table 57 Limits of size for NOT GO screw check plugs for NOT GO effective diameter ring gauges, solid type 52 Table 58 Limits of size for GO and NOT GO plain check p
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