1、BRITISH STANDARDBS ISO 16031-1:2002Aerospace fluid systems O-rings, inch series: Inside diameters and cross sections, tolerances and size-identification codes Part 1: Close tolerances for hydraulic systemsICS 49.080g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g5
2、4g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS ISO 16031-1:2002This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2008 BSI 2008ISBN 978 0 580 61240 4National forewor
3、dThis British Standard is the UK implementation of ISO 16031-1:2002.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 secretar
4、y.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 numberISO
5、 16031-1:2002(E)INTERNATIONAL STANDARD ISO16031-1First edition2002-06-15Aerospace fluid systems O-rings, inch series: Inside diameters and cross sections, tolerances and size-identification codes Part 1: Close tolerances for hydraulic systems Systmes arospatiaux de fluides Joints toriques, srie en i
6、nches: diamtres intrieurs et sections, tolrances et codes didentification dimensionnelle Partie 1: Tolrances serres pour systmes hydrauliques BS ISO 16031-1:2002ii iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member
7、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 organizations, governmental
8、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 the ISO/IEC Directive
9、s, Part 3. 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 % of the member bodies c
10、asting a vote. Attention is drawn to the possibility that some of the elements of this part of ISO 16031 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 16031-1 was prepared by Technical Committee ISO/TC 20, Aircraft and space
11、 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 for hydrauli
12、c systems Part 2: Standard tolerances (for non-hydraulic systems) BS ISO 16031-1:2002iv 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 conditions. Te
13、sting 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 16031-1:20021Aerospace fluid systems O-rings, inch series: Inside diameters and cross section
14、s, tolerances and size-identification codes Part 1: Close tolerances for 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. The dimensions and high precision toler
15、ances specified in this part of ISO 16031 are suitable for nitrile and ethylene propylene materials intended for use in high pressure hydraulic fluid systems provided that suitable tooling be available. 2 Normative reference The following normative document contains provisions which, through referen
16、ce in this text, constitute provisions of this part of ISO 16031. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However parties to agreements based on this part of ISO 16031 are encouraged to investigate the possibility of applying the most
17、recent edition of the normative document indicated below. For undated references, the latest edition of the document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 5598:1985, Fluid power systems and components Vocabulary 3 Terms and def
18、initions For the purposes of this part of ISO 16031 the terms and definitions given in ISO 5598 apply. NOTE Throughout ISO 16301, 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 F
19、igure 1. 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. For each of these combinations there is a corresponding size identification code. BS ISO 16031-1:20022 Figure 1 Typical
20、O-ring configuration 6 Size identification code 6.1 Table 1 lists the dimensions of O-rings and their corresponding size identification code 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
21、 one hundred identifies the cross-section size of the O-rings within the group (except for sizes -001 to -003 which have unique cross-section sizes). EXAMPLE Reference to Table 1 establishes that -025 represents an O-ring with a cross-section of 0,070 in (1,78 mm) and an internal diameter of 1,170 i
22、n to 1,182 in (29,72 mm to 30,02 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 for sealing straight thread tube fitting bosses. This series utilizes a significant dash nu
23、mbering 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. EXAMPLE BS ISO 16031-1:20023Table 1 Inside diameters, cross-sections and tolerances Internal diameter d1Cross sect
24、ion d2in mm in mm Volume (Ref.) Size identifi-cation code min. max. min. max. min. max. min. max. in3cm3-001 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 1,17 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,
25、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 0,140 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
26、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 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
27、 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 0,546 0,556 13,87 14,12 0,067 0,073 1,70 1,85 0,007 5 0,123 -016 0,609 0,619 15,47 15,72 0,067 0,073 1,70 1,85 0,0083 0,136 -017 0,671 0,681 17,04 17,30 0,067 0,073 1,70 1,85 0,009 0 0,147 -018 0,734 0,744
28、 18,64 18,90 0,067 0,073 1,70 1,85 0,009 8 0,161 -019 0,795 0,807 20,19 20,50 0,067 0,073 1,70 1,85 0,010 5 0,172 -020 0,858 0,870 21,79 22,10 0,067 0,073 1,70 1,85 0,011 3 0,185 -021 0,920 0,932 23,36 23,67 0,067 0,073 1,70 1,85 0,012 0 0,197 -022 0,983 0,995 24,97 25,27 0,067 0,073 1,70 1,85 0,012
29、 8 0,210 -023 1,045 1,057 26,54 26,85 0,067 0,073 1,70 1,85 0,013 6 0,223 -024 1,108 1,120 28,14 28,45 0,067 0,073 1,70 1,85 0,014 3 0,234 -025 1,170 1,182 29,72 30,02 0,067 0,073 1,70 1,85 0,015 1 0,247 -026 1,233 1,245 31,32 31,62 0,067 0,073 1,70 1,85 0,015 8 0,259 -027 1,295 1,307 32,89 33,20 0,
30、067 0,073 1,70 1,85 0,016 6 0,272 -028 1,358 1,370 34,49 34,80 0,067 0,073 1,70 1,85 0,017 3 0,283 -029 1,479 1,499 37,57 38,07 0,067 0,073 1,70 1,85 0,018 8 0,308 -030 1,604 1,624 40,74 41,25 0,067 0,073 1,70 1,85 0,020 4 0,334 BS ISO 16031-1:20024 Table 1 (continued) Internal diameter d1Cross sect
31、ion d2in mm in mm Volume (Ref.) Size identifi-cation code min. max. min. max. min. max. min. max. in3cm3-031 1,729 1,749 43,92 44,42 0,067 0,073 1,70 1,85 0,021 9 0,359 -032 1,854 1,874 47,09 47,60 0,067 0,073 1,70 1,85 0,023 4 0,383 -033 1,979 1,999 50,27 50,77 0,067 0,073 1,70 1,85 0,024 9 0,408 -
32、034 2,104 2,124 53,44 53,95 0,067 0,073 1,70 1,85 0,026 4 0,433 -035 2,229 2,249 56,62 57,12 0,067 0,073 1,70 1,85 0,027 9 0,457 -036 2,354 2,374 59,79 60,30 0,067 0,073 1,70 1,85 0,029 4 0,482 -037 2,479 2,499 62,97 63,47 0,067 0,073 1,70 1,85 0,030 9 0,506 -038 2,604 2,624 66,14 66,65 0,067 0,073
33、1,70 1,85 0,032 5 0,533 -039 2,724 2,754 69,19 69,95 0,067 0,073 1,70 1,85 0,034 0 0,557 -040 2,849 2,879 72,36 73,13 0,067 0,073 1,70 1,85 0,035 5 0,582 -041 2,974 3,004 75,54 76,30 0,067 0,073 1,70 1,85 0,037 0 0,606 -042 3,224 3,254 81,89 82,65 0,067 0,073 1,70 1,85 0,040 0 0,655 -043 3,474 3,504
34、 88,24 89,00 0,067 0,073 1,70 1,85 0,043 0 0,705 -044 3,724 3,754 94,59 95,35 0,067 0,073 1,70 1,85 0,046 1 0,755 -045 3,974 4,004 100,94 101,70 0,067 0,073 1,70 1,85 0,049 1 0,805 -046 4,224 4,254 107,29 108,05 0,067 0,073 1,70 1,85 0,052 1 0,854 -047 4,474 4,504 113,64 114,40 0,067 0,073 1,70 1,85
35、 0,055 1 0,903 -048 4,724 4,754 119,99 120,75 0,067 0,073 1,70 1,85 0,058 1 0,952 -049 4,966 5,012 126,14 127,30 0,067 0,073 1,70 1,85 0,061 2 1,003 -050 5,216 5,262 132,49 133,65 0,067 0,073 1,70 1,85 0,064 2 1,052 *051 THRU O-ring sizes not assigned *10 -102 0,044 0,054 1,12 1,37 0,100 0,106 2,54
36、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 2,69 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,
37、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 0,100 0,106 2,54 2,69 0,012 2 0,200 BS ISO 16031-1:20025Table 1 (continued) Internal diameter d1Cross section d2i
38、n mm in mm Volume (Ref.) Size identifi-cation code min. max. min. max. min. max. min. max. in3cm3-111 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 0,544 0,554 13,82 14,07 0,100 0,106 2,54 2,69 0,017 1 0,280 -114 0,6
39、07 0,617 15,42 15,67 0,100 0,106 2,54 2,69 0,018 7 0,306 -115 0,669 0,679 16,99 17,25 0,100 0,106 2,54 2,69 0,020 3 0,333 -116 0,732 0,742 18,59 18,85 0,100 0,106 2,54 2,69 0,022 0 0,361 -117 0,793 0,805 20,14 20,45 0,100 0,106 2,54 2,69 0,023 6 0,387 -118 0,856 0,868 21,74 22,05 0,100 0,106 2,54 2,
40、69 0,025 3 0,415 -119 0,918 0,930 23,32 23,62 0,100 0,106 2,54 2,69 0,026 9 0,441 -120 0,981 0,993 24,92 25,22 0,100 0,106 2,54 2,69 0,028 5 0,467 -121 1,043 1,055 26,49 26,80 0,100 0,106 2,54 2,69 0,030 2 0,495 -122 1,106 1,118 28,09 28,40 0,100 0,106 2,54 2,69 0,031 8 0,521 -123 1,168 1,180 29,67
41、29,97 0,100 0,106 2,54 2,69 0,033 4 0,547 -124 1,231 1,243 31,27 31,57 0,100 0,106 2,54 2,69 0,035 1 0,575 -125 1,293 1,305 32,84 33,15 0,100 0,106 2,54 2,69 0,036 7 0,601 -126 1,356 1,368 34,44 34,74 0,100 0,106 2,54 2,69 0,038 3 0,628 -127 1,418 1,430 36,02 36,32 0,100 0,106 2,54 2,69 0,040 0 0,65
42、5 -128 1,481 1,493 37,62 37,92 0,100 0,106 2,54 2,69 0,041 6 0,682 -129 1,539 1,559 39,09 39,60 0,100 0,106 2,54 2,69 0,043 2 0,708 -130 1,602 1,622 40,69 41,20 0,100 0,106 2,54 2,69 0,044 9 0,736 -131 1,664 1,684 42,27 42,77 0,100 0,106 2,54 2,69 0,046 5 0,762 -132 1,727 1,747 43,87 44,37 0,100 0,1
43、06 2,54 2,69 0,048 2 0,790 -133 1,789 1,809 45,44 45,95 0,100 0,106 2,54 2,69 0,049 8 0,816 -134 1,852 1,872 47,04 47,55 0,100 0,106 2,54 2,69 0,051 4 0,842 -135 1,915 1,935 48,64 49,15 0,100 0,106 2,54 2,69 0,053 1 0,870 -136 1,977 1,997 50,22 50,72 0,100 0,106 2,54 2,69 0,054 7 0,896 -137 2,040 2,
44、060 51,82 52,32 0,100 0,106 2,54 2,69 0,056 4 0,924 -138 2,102 2,122 53,39 53,90 0,100 0,106 2,54 2,69 0,058 0 0,950 -139 2,165 2,185 54,99 55,50 0,100 0,106 2,54 2,69 0,059 6 0,977 -140 2,227 2,247 56,57 57,07 0,100 0,106 2,54 2,69 0,061 3 1,005 BS ISO 16031-1:20026 Table 1 (continued) Internal dia
45、meter d1Cross section d2in mm in mm Volume (Ref.) Size identifi-cation code min. max. min. max. min. max. min. max. in3cm3-141 2,290 2,310 58,17 58,67 0,100 0,106 2,54 2,69 0,062 9 1,031 -142 2,352 2,372 59,74 60,25 0,100 0,106 2,54 2,69 0,064 5 1,057 -143 2,415 2,435 61,34 61,85 0,100 0,106 2,54 2,
46、69 0,066 2 1,085 -144 2,477 2,497 62,92 63,42 0,100 0,106 2,54 2,69 0,067 8 1,111 -145 2,540 2,560 64,52 65,02 0,100 0,106 2,54 2,69 0,069 4 1,137 -146 2,602 2,622 66,09 66,60 0,100 0,106 2,54 2,69 0,071 1 1,165 -147 2,660 2,690 67,56 68,33 0,100 0,106 2,54 2,69 0,072 7 1,191 -148 2,722 2,752 69,14
47、69,90 0,100 0,106 2,54 2,69 0,074 3 1,218 -149 2,785 2,815 70,74 71,50 0,100 0,106 2,54 2,69 0,076 0 1,245 -150 2,847 2,877 72,31 73,07 0,100 0,106 2,54 2,69 0,077 6 1,272 -151 2,972 3,002 75,49 76,25 0,100 0,106 2,54 2,69 0,080 9 1,326 -152 3,222 3,252 81,84 82,60 0,100 0,106 2,54 2,69 0,087 4 1,43
48、2 -153 3,472 3,502 88,19 88,95 0,100 0,106 2,54 2,69 0,094 0 1,540 -154 3,722 3,752 94,54 95,30 0,100 0,106 2,54 2,69 0,100 5 1,647 -155 3,972 4,002 100,89 101,65 0,100 0,106 2,54 2,69 0,107 1 1,755 -156 4,222 4,252 107,24 108,00 0,100 0,106 2,54 2,69 0,113 6 1,862 -157 4,472 4,502 113,59 114,35 0,1
49、00 0,106 2,54 2,69 0,120 2 1,970 -158 4,722 4,752 119,94 120,70 0,100 0,106 2,54 2,69 0,126 7 2,076 -159 4,972 5,002 126,29 127,05 0,100 0,106 2,54 2,69 0,133 2 2,183 -160 5,214 5,260 132,43 133,60 0,100 0,106 2,54 2,69 0,139 8 2,291 -161 5,464 5,510 138,79 139,95 0,100 0,106 2,54 2,69 0,146 3 2,397 -162 5,714 5,760 145,14 146,30 0,100 0,106 2,54 2,69 0,152 9 2,506 -163 5,964 6,010 151,49 152,65 0,100 0,106 2,54 2,69 0,159 4 2,612 -164 6,214 6,260 157,84 159,00 0,100 0,106 2,54 2,69 0,166 0 2,720 -165 6,464 6,510 164,19 165,35 0,100 0,106 2,5
