1、BRITISH STANDARDBS ISO 16031-2:2003Aerospace fluid systems O-rings, inch series: Inside diameters and cross sections, tolerances and size-identification codes Part 2: Standard tolerances for non-hydraulic systemsICS 49.080g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g
2、44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS ISO 16031-2:2003This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2008 BSI 2008ISBN 978 0 580 53199 6National
3、forewordThis British Standard is the UK implementation of ISO 16031-2:2003. The UK participation in its preparation was entrusted to Technical Committee ACE/69, Aerospace hydraulic systems, fluids and components.A list of organizations represented on this committee can be obtained on request to its
4、secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since publicationDate CommentsReference n
5、umberISO 16031-2:2003(E)INTERNATIONAL STANDARD ISO16031-2First edition2003-09-01Aerospace fluid systems O-rings, inch series: Inside diameters and cross sections, tolerances and size-identification codes Part 2: Standard tolerances for non-hydraulic systems Systmes arospaciaux de fluides Joints tori
6、ques, srie en inches: diamtres intrieurs et sections, tolrances et codes didentification dimensionnelle Partie 2: Tolrances standards pour systmes non hydrauliques BS ISO 16031-2:2003ii iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standar
7、ds bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organi
8、zations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in
9、 the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 %
10、of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 16031-2 was prepared by Technical Committee ISO/TC 20, Aircr
11、aft and space vehicles, Subcommittee SC 10, Aerospace fluid systems and components. ISO 16031 consists of the following parts, under the general title Aerospace fluid systems O-rings, inch series: Inside diameters and cross sections, tolerances and size-identification codes: Part 1: Close tolerances
12、 for hydraulic systems Part 2: Standard tolerances for non-hydraulic systems BS ISO 16031-2:2003iv Introduction In fluid power systems, power is transmitted through a fluid (liquid or gas) under pressure within an enclosed circuit. Components are designed to meet these requirements under varying con
13、ditions. Testing of components to meet performance requirements provides users with a basis of assurance for determining design applications and for checking component compliance with their stated requirements. BS ISO 16031-2:20031Aerospace fluid systems O-rings, inch series: Inside diameters and cr
14、oss sections, tolerances and size-identification codes Part 2: Standard tolerances for non-hydraulic systems 1 Scope This part of ISO 16031 specifies the inside diameters, cross-sections, tolerances and size identification codes for inch O-rings used in aerospace fluid systems intended for use in no
15、n-hydraulic systems. This part of ISO 16031 is applicable, provided that suitable tooling is available, to O-rings made from all other elastomeric materials other than nitrile and ethylene propylene materials, for which ISO 16031-1 specifies the dimensions. Specifications for O-rings with an inside
16、diameter d1u 12,7 mm have been taken from ISO 16031-1, because the same tolerances are applicable to the O-rings in this part of ISO 16031. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited a
17、pplies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 5598:1985, Fluid power systems and components Vocabulary 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 5598 apply. NOTE Throughout
18、 this part of ISO 16031, the term “O-ring” has been adopted although the correct technical term is “toroidal sealing ring”. 4 Configuration The shape of the O-ring shall be toroidal as shown in Figure 1. BS ISO 16031-2:20032 Key d1inside diameter d2cross-section diameter Figure 1 Typical O-ring conf
19、iguration 5 Inside diameters, cross-sections and tolerances The combinations of inside diameters, d1, cross-sections, d2, and O-ring tolerances shall be chosen from Tables 1 and 2. 6 Size identification code 6.1 Table 1 lists the dimensions of O-rings and their corresponding size identification code
20、 from -001 to -475. The size identification codes are divided into groups of one hundred and within each group are sequential and not significant. Each group of one hundred identifies the cross-section size of the O-rings within the group. EXAMPLE Reference to Table 1 establishes that -025 represent
21、s an O-ring with a cross-section of 0,070 in (1,78 mm) and an internal diameter of 1,165 in to 1,187 in (29,59 mm to 30,15 mm). 6.2 Table 2 lists the dimensions of O-rings and their corresponding size identification code for the 900 series, which includes all of the currently standardized O-rings fo
22、r sealing straight thread tube-fitting bosses. This series utilizes a significant dash numbering system, where the dash number designates the tube size in 1/16ths in, with the exception of the -901, which is intended for a 0,093 8 in (2,38 mm) nominal outside diameter tube. BS ISO 16031-2:20033EXAMP
23、LE BS ISO 16031-2:20034 Table 1 Inside diameters, cross-sections and tolerances Internal diameter Cross-section d1d2Volume (Ref.) in mm in mm in3cm3Size identifi-cation code min. max. min. max. min. max. min. max. -001 0,025 0,033 0,64 0,84 0,037 0,043 0,94 1,09 0,000 3 0,005 -002 0,038 0,046 0,97 1
24、,17 0,047 0,053 1,19 1,35 0,000 6 0,010 -003 0,052 0,060 1,32 1,52 0,057 0,063 1,45 1,60 0,001 0 0,016 -004 0,065 0,075 1,65 1,90 0,067 0,073 1,70 1,85 0,001 7 0,028 -005 0,096 0,106 2,44 2,69 0,067 0,073 1,70 1,85 0,002 1 0,034 -006 0,109 0,119 2,77 3,02 0,067 0,073 1,70 1,85 0,002 2 0,036 -007 0,1
25、40 0,150 3,56 3,81 0,067 0,073 1,70 1,85 0,002 6 0,043 -008 0,171 0,181 4,34 4,60 0,067 0,073 1,70 1,85 0,003 0 0,049 -009 0,203 0,213 5,16 5,41 0,067 0,073 1,70 1,85 0,003 4 0,056 -010 0,234 0,244 5,94 6,20 0,067 0,073 1,70 1,85 0,003 7 0,061 -011 0,296 0,306 7,52 7,77 0,067 0,073 1,70 1,85 0,004 5
26、 0,074 -012 0,359 0,369 9,12 9,37 0,067 0,073 1,70 1,85 0,005 2 0,085 -013 0,421 0,431 10,69 10,95 0,067 0,073 1,70 1,85 0,006 0 0,098 -014 0,484 0,494 12,29 12,55 0,067 0,073 1,70 1,85 0,006 8 0,111 -015 0,544 0,558 13,82 14,17 0,067 0,073 1,70 1,85 0,007 5 0,123 -016 0,605 0,623 15,37 15,82 0,067
27、0,073 1,70 1,85 0,008 3 0,136 -017 0,667 0,685 16,94 17,40 0,067 0,073 1,70 1,85 0,009 0 0,147 -018 0,730 0,748 18,54 19,00 0,067 0,073 1,70 1,85 0,009 8 0,161 -019 0,792 0,810 20,12 20,57 0,067 0,073 1,70 1,85 0,010 5 0,172 -020 0,855 0,873 21,72 22,17 0,067 0,073 1,70 1,85 0,011 3 0,185 -021 0,917
28、 0,935 23,29 23,75 0,067 0,073 1,70 1,85 0,012 0 0,197 -022 0,979 0,999 24,87 25,37 0,067 0,073 1,70 1,85 0,012 8 0,210 -023 1,041 1,061 26,44 26,95 0,067 0,073 1,70 1,85 0,013 6 0,223 -024 1,104 1,124 28,04 28,55 0,067 0,073 1,70 1,85 0,014 3 0,234 -025 1,165 1,187 29,59 30,15 0,067 0,073 1,70 1,85
29、 0,015 1 0,247 -026 1,228 1,250 31,19 31,75 0,067 0,073 1,70 1,85 0,015 8 0,259 -027 1,290 1,312 32,77 33,32 0,067 0,073 1,70 1,85 0,016 6 0,272 -028 1,351 1,377 34,32 34,98 0,067 0,073 1,70 1,85 0,017 3 0,283 -029 1,476 1,502 37,49 38,15 0,067 0,073 1,70 1,85 0,018 8 0,308 -030 1,601 1,627 40,67 41
30、,33 0,067 0,073 1,70 1,85 0,020 4 0,334 -031 1,724 1,754 43,79 44,55 0,067 0,073 1,70 1,85 0,021 9 0,359 -032 1,849 1,879 46,96 47,73 0,067 0,073 1,70 1,85 0,023 4 0,383 -033 1,971 2,007 50,06 50,98 0,067 0,073 1,70 1,85 0,024 9 0,408 -034 2,096 2,132 53,24 54,15 0,067 0,073 1,70 1,85 0,026 4 0,433
31、-035 2,221 2,257 56,41 57,33 0,067 0,073 1,70 1,85 0,027 9 0,457 -036 2,346 2,382 59,59 60,50 0,067 0,073 1,70 1,85 0,029 4 0,482 -037 2,471 2,507 62,76 63,68 0,067 0,073 1,70 1,85 0,030 9 0,506 -038 2,594 2,634 65,89 66,90 0,067 0,073 1,70 1,85 0,032 5 0,533 -029 2,719 2,759 69,06 70,08 0,067 0,073
32、 1,70 1,85 0,034 0 0,557 -040 2,844 2,884 72,24 73,25 0,067 0,073 1,70 1,85 0,035 5 0,582 -041 2,965 3,013 75,31 76,53 0,067 0,073 1,70 1,85 0,037 0 0,606 -042 3,215 3,263 81,66 82,88 0,067 0,073 1,70 1,85 0,040 0 0,655 -043 3,465 3,513 88,01 89,23 0,067 0,073 1,70 1,85 0,043 0 0,705 -044 3,712 3,76
33、6 94,28 95,66 0,067 0,073 1,70 1,85 0,046 1 0,755 -045 3,962 4,016 100,63 102,01 0,067 0,073 1,70 1,85 0,049 1 0,805 BS ISO 16031-2:20035Table 1 (continued) Internal diameter Cross-section d1d2Volume (Ref.) in mm in mm in3cm3Size identifi-cation code min. max. min. max. min. max. min. max. -046 4,20
34、9 4,269 106,91 108,43 0,067 0,073 1,70 1,85 0,052 1 0,854 -047 4,459 4,519 113,26 114,78 0,067 0,073 1,70 1,85 0,055 1 0,903 -048 4,709 4,769 119,61 121,13 0,067 0,073 1,70 1,85 0,058 1 0,952 -049 4,952 5,026 125,78 127,66 0,067 0,073 1,70 1,85 0,061 2 1,003 -050 5,202 5,276 132,13 134,01 0,067 0,07
35、3 1,70 1,85 0,064 2 1,052 *051 to O-ring sizes not assigned *101 -102 0,044 0,054 1,12 1,37 0,100 0,106 2,54 2,69 0,004 0 0,066 -103 0,076 0,086 1,93 2,18 0,100 0,106 2,54 2,69 0,004 8 0,079 -104 0,107 0,117 2,72 2,97 0,100 0,106 2,54 2,69 0,005 6 0,092 -105 0,138 0,148 3,51 3,76 0,100 0,106 2,54 2,
36、69 0,006 4 0,105 -106 0,169 0,179 4,29 4,55 0,100 0,106 2,54 2,69 0,007 3 0,120 -107 0,201 0,211 5,11 5,36 0,100 0,106 2,54 2,69 0,008 1 0,133 -108 0,232 0,242 5,89 6,15 0,100 0,106 2,54 2,69 0,008 9 0,146 -109 0,294 0,304 7,47 7,72 0,100 0,106 2,54 2,69 0,010 5 0,172 -110 0,357 0,367 9,07 9,32 0,10
37、0 0,106 2,54 2,69 0,012 2 0,200 -111 0,419 0,429 10,64 10,90 0,100 0,106 2,54 2,69 0,013 8 0,226 -112 0,482 0,492 12,24 12,50 0,100 0,106 2,54 2,69 0,015 4 0,252 -113 0,542 0,556 13,77 14,12 0,100 0,106 2,54 2,69 0,017 1 0,280 -114 0,603 0,621 15,32 15,77 0,100 0,106 2,54 2,69 0,018 7 0,306 -115 0,6
38、65 0,683 16,89 17,35 0,100 0,106 2,54 2,69 0,020 3 0,333 -116 0,728 0,746 18,49 18,95 0,100 0,106 2,54 2,69 0,022 0 0,361 -117 0,789 0,809 20,04 20,55 0,100 0,106 2,54 2,69 0,023 6 0,387 -118 0,852 0,872 21,64 22,15 0,100 0,106 2,54 2,69 0,025 3 0,415 -119 0,914 0,934 23,22 23,72 0,100 0,106 2,54 2,
39、69 0,026 9 0,441 -120 0,977 0,997 24,82 25,32 0,100 0,106 2,54 2,69 0,028 5 0,467 -121 1,039 1,059 26,39 26,90 0,100 0,106 2,54 2,69 0,030 2 0,495 -122 1,102 1,122 27,99 28,50 0,100 0,106 2,54 2,69 0,031 8 0,521 -123 1,162 1,186 29,51 30,12 0,100 0,106 2,54 2,69 0,033 4 0,547 -124 1,225 1,249 31,12
40、31,72 0,100 0,106 2,54 2,69 0,035 1 0,575 -125 1,287 1,311 32,69 33,30 0,100 0,106 2,54 2,69 0,036 7 0,601 -126 1,350 1,374 34,29 34,90 0,100 0,106 2,54 2,69 0,038 3 0,628 -127 1,412 1,436 35,86 36,47 0,100 0,106 2,54 2,69 0,040 0 0,655 -128 1,475 1,499 37,46 38,07 0,100 0,106 2,54 2,69 0,041 6 0,68
41、2 -129 1,534 1,564 38,96 39,73 0,100 0,106 2,54 2,69 0,043 2 0,708 -130 1,597 1,627 40,56 41,33 0,100 0,106 2,54 2,69 0,044 9 0,736 -131 1,659 1,689 42,14 42,90 0,100 0,106 2,54 2,69 0,046 5 0,762 -132 1,722 1,752 43,74 44,50 0,100 0,106 2,54 2,69 0,048 2 0,790 -133 1,784 1,814 45,31 46,08 0,100 0,1
42、06 2,54 2,69 0,049 8 0,816 -134 1,847 1,877 46,91 47,68 0,100 0,106 2,54 2,69 0,051 4 0,842 -135 1,908 1,942 48,46 49,33 0,100 0,106 2,54 2,69 0,053 1 0,870 BS ISO 16031-2:20036 Table 1 (continued) Internal diameter Cross-section d1d2Volume (Ref.) in mm in mm in3cm3Size identifi-cation code min. max
43、. min. max. min. max. min. max. -136 1,970 2,004 50,04 50,90 0,100 0,106 2,54 2,69 0,054 7 0,896 -137 2,033 2,067 51,64 52,50 0,100 0,106 2,54 2,69 0,056 4 0,924 -138 2,095 2,129 53,21 54,08 0,100 0,106 2,54 2,69 0,058 0 0,950 -139 2,158 2,192 54,81 55,68 0,100 0,106 2,54 2,69 0,059 6 0,977 -140 2,2
44、20 2,254 56,39 57,25 0,100 0,106 2,54 2,69 0,061 3 1,005 -141 2,280 2,320 57,91 58,93 0,100 0,106 2,54 2,69 0,062 9 1,031 -142 2,342 2,382 59,49 60,50 0,100 0,106 2,54 2,69 0,064 5 1,057 -143 2,405 2,445 61,09 62,10 0,100 0,106 2,54 2,69 0,066 2 1,085 -144 2,467 2,507 62,66 63,68 0,100 0,106 2,54 2,
45、69 0,067 8 1,111 -145 2,530 2,570 64,26 65,28 0,100 0,106 2,54 2,69 0,069 4 1,137 -146 2,592 2,632 65,84 66,85 0,100 0,106 2,54 2,69 0,071 1 1,165 -147 2,653 2,697 67,39 68,50 0,100 0,106 2,54 2,69 0,072 7 1,191 -148 2,715 2,759 68,96 70,08 0,100 0,106 2,54 2,69 0,074 3 1,218 -149 2,778 2,822 70,56
46、71,68 0,100 0,106 2,54 2,69 0,076 0 1,245 -150 2,840 2,884 72,14 73,25 0,100 0,106 2,54 2,69 0,077 6 1,272 -151 2,963 3,011 75,26 76,48 0,100 0,106 2,54 2,69 0,080 9 1,326 -152 3,213 3,261 81,61 82,83 0,100 0,106 2,54 2,69 0,087 4 1,432 -153 3,463 3,511 87,96 89,18 0,100 0,106 2,54 2,69 0,094 0 1,54
47、0 -154 3,709 3,765 94,21 95,63 0,100 0,106 2,54 2,69 0,100 5 1,647 -155 3,959 4,015 100,56 101,98 0,100 0,106 2,54 2,69 0,107 1 1,755 -156 4,207 4,267 106,86 108,38 0,100 0,106 2,54 2,69 0,113 6 1,862 -157 4,457 4,517 113,21 114,73 0,100 0,106 2,54 2,69 0,120 2 1,970 -158 4,707 4,767 119,56 121,08 0
48、,100 0,106 2,54 2,69 0,126 7 2,076 -159 4,952 5,022 125,78 127,56 0,100 0,106 2,54 2,69 0,133 2 2,183 -160 5,202 5,272 132,13 133,91 0,100 0,106 2,54 2,69 0,139 8 2,291 -161 5,452 5,522 138,48 140,26 0,100 0,106 2,54 2,69 0,146 3 2,397 -162 5,702 5,772 144,83 146,61 0,100 0,106 2,54 2,69 0,152 9 2,5
49、06 -163 5,952 6,022 151,18 152,96 0,100 0,106 2,54 2,69 0,159 4 2,612 -164 6,197 6,277 157,40 159,44 0,100 0,106 2,54 2,69 0,166 0 2,720 -165 6,447 6,527 163,75 165,79 0,100 0,106 2,54 2,69 0,172 5 2,827 -166 6,697 6,777 170,10 172,14 0,100 0,106 2,54 2,69 0,179 0 2,933 -167 6,947 7,027 176,45 178,49 0,100 0,106 2,54 2,69 0,185 6 3,041 -168 7,192 7,282 182,68 184,96 0,100 0,106 2,54 2,69 0,192 1 3,148 -169 7,442 7,532 189,03 191,31 0,100 0,106 2,54 2,69 0,198 7 3,256 -170 7,692 7,782 195,38 197,66 0,100 0,106 2,54 2,69 0,205 2 3,363 -171 7,942 8,03
