ISO-16031-2-2003.pdf

Reference number ISO 16031-2:2003(E) © ISO 2003 INTERNATIONAL STANDARD ISO 16031-2 First edition 2003-09-01 Aerospace fluid systems O-rings, inch series: Inside diameters and cross sections, tolerances and size- identification codes Part 2: Standard tolerances for non-hydraulic systems Systèmes aérospaciaux de fluides Joints toriques, série en inches: diamètres intérieurs et sections, tolérances et codes d'identification dimensionnelle Partie 2: Tolérances standards pour systèmes non hydrauliques Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 04:05:53 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 16031-2:2003(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. © ISO 2003 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii © ISO 2003 All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 04:05:53 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 16031-2:2003(E) © ISO 2003 All rights reserved iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards 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 organizations, 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 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 % 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, Aircraft 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 for hydraulic systems Part 2: Standard tolerances for non-hydraulic systems Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 04:05:53 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 16031-2:2003(E) iv © ISO 2003 All rights reserved 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. 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. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 04:05:53 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO 16031-2:2003(E) © ISO 2003 All rights reserved 1 Aerospace fluid systems O-rings, inch series: Inside diameters and cross 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 non-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 diameter d1 u 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 applies. 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 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. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 04:05:53 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 16031-2:2003(E) 2 © ISO 2003 All rights reserved Key d1 inside diameter d2 cross-section diameter Figure 1 Typical O-ring configuration 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 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 represents 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 for 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. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 04:05:53 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 16031-2:2003(E) © ISO 2003 All rights reserved 3 EXAMPLE Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 04:05:53 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 16031-2:2003(E) 4 © ISO 2003 All rights reserved Table 1 Inside diameters, cross-sections and tolerances Internal diameter Cross-section d1 d2 Volume (Ref.) in mm in mm in3 cm3 Size 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 1,17 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 0,140 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 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 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 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 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 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 41,33 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 -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 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 3,766 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 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 04:05:53 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 16031-2:2003(E) © ISO 2003 All rights reserved 5 Table 1 (continued) Internal diameter Cross-section d1 d2 Volume (Ref.) in mm in mm in3 cm3 Size identifi- cation code min. max. min. max. min. max. min. max. -046 4,209 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 0,073 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 2,69 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 0,100 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 0,665 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 2,69 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 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 0,682 -129 1,534 1,564