1、AEROSPACE STANDARDMA2010Issued 1987-07Reaffirmed 2006-05Packing, Preformed - O-Ring SealStandard Sizes & Size Codes, MetricFSC 53301. SCOPE AND FIELD OF APPLICATION:1.1 This standard provides the standard sizes and size identification codes for preformed packings, elastomer o-ring seals, for use in
2、metric aerospace fluid systems.1.2 The aerospace o-ring sizes and size identification codes in this standard are in agreement with ISO 3601/1, Series A.2. REFERENCE:2.1 Applicable Document:ISO 3601/1 Fluid systems - Sealing devices - O-rings - Part 1: Inside diameters, cross-sections, tolerances and
3、 size identification code3. REQUIREMENTS:3.1 Configuration:The shape of the o-ring seal is toroidal and is defined by the inside diameter, d1, and the cross-section diameter, d2, as shown in Figure 1.RATIONALE This document has been reaffirmed to comply with the SAE 5-year Review policy. SAE Technic
4、al Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the
5、sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2006 SAE International All rights reserved. No part of this publication may be reprodu
6、ced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: 724-776-4970 (outside USA) Fax: 724-776
7、0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE MA2010 - 2 -FIGURE 1. O-Ring Seal Configuration3.2 Standard Sizes:The standa
8、rd o-ring sizes, Series A, combination of inside diameters, cross-section diameters, and their tolerances are specified in Table I.3.3 Size Identification Code:Each standard o-ring size is designated by a five-character alphanumeric size identification code as specified in Table I.3.3.1 The letter s
9、ymbol for the first element of the size identification code represents the cross-section nominal diameter as follows:3.3.2 Numeric Element: The four digit element (following the letter symbol) represents the inside diameter, d1, expressed in tenths of a millimetre.Copyright SAE International Provide
10、d by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE MA2010 - 3 -3.3.3 Example Size Identification Code:NOTE: The decimal sign for d1is placed after the third digit of the four digit element for decoding the dimensional value.3.3.4 The
11、 size identification codes listed in Table I are the standard o-ring sizes for selection. For standardization purposes, unassigned codes should be avoided.PREPARED BY SAE COMMITTEE E-25,GENERAL STANDARDS FOR AEROSPACE PROPULSION SYSTEMSCopyright SAE International Provided by IHS under license with S
12、AENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE MA2010 - 4 -TABLE I. Aerospace Standard O-Ring Sizes & Size Identification CodesCopyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without lic
13、ense from IHS-,-,-SAE MA2010 - 5 -TABLE I. Aerospace Standard O-Ring Sizes & Size Identification Codes (Cont.)Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE MA2010 - 6 -TABLE I. Aerospace Standard O-Ring Sizes & Size Identification Codes (Cont.)Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
