1、 AEROSPACE STANDARD SEAL, TYPE I & II STANDARD AND LOW PROFILE AS1895/7 Copyright 2017 SAE International All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or o
2、therwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org ISSUED1985-12REAFFIRMED 2007-08REVISED2017-12THIRD ANGLE P
3、ROJECTION CUSTODIAN: G-3/G-3A REV.F FEDERAL SUPPLY CLASS 5340 AS1895 /7 SHEET 1 OF 2 REV. F PROCUREMENT SPECIFICATION: AS1895 /3/ SAE Technical Standards Board Rules provide that: “This report is published by SAEtoadvance thestate of technicaland engineering sciences. The useof this report is entire
4、ly voluntary, and its applicability andsuitability for any particularuse, includingany patent infringement arisingtherefrom,is thesole responsibility of theuser.” SAE reviews eachtechnical reportatleast every fiveyears at whichtime it may be revised, reaffirmed, stabilized, or cancelled. SAE invites
5、 your written comments and suggestions.SAE values your input. To provide feedback on this Technical Report, please visit http:/standards.sae.org/AS1895/7F RATIONALE QPL REQUIREMENT DATE CHANGED TO ALLOW REASONABLE TIME FOR MANUFACTURERS TO QUALIFY. FIGURE 1 - SEAL ENVELOPE TABLE 1 - DIMENSIONS AND W
6、EIGHTS PART NUMBER (TUBE SIZE) A MAX B MIN LB/EA MAX AS1895/7-100 AS1895/7-125 AS1895/7-150 AS1895/7-175 AS1895/7-200 AS1895/7-225 AS1895/7-250 AS1895/7-275 AS1895/7-300 AS1895/7-325 AS1895/7-350 AS1895/7-400 AS1895/7-450 AS1895/7-500 AS1895/7-550 AS1895/7-600 AS1895/7-650 AS1895/7-700 AS1895/7-750
7、1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.25 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 1.249 1.499 1.749 1.999 2.249 2.499 2.749 2.999 3.249 3.499 3.749 4.249 4.749 5.249 5.749 6.249 6.749 7.249 7.749 .958 1.208 1.458 1.708 1.958 2.208 2.458 2.708 2.958 3.208 3.458 3.958 4.458 4.958 5.458 5.
8、958 6.458 6.958 7.458 .007 .008 .009 .012 .013 .014 .015 .016 .017 .019 .020 .022 .025 .027 .029 .032 .035 .037 .041 AEROSPACE STANDARD AS1895 /7 SHEET 2 OF 2 REV. F SEAL, TYPE I & II STANDARD AND LOW PROFILE NOTES: 1. MATERIAL: NICKEL ALLOY 718 PER AMS5589 OR AMS5596. 2. FINISH: PASSIVATE PER AMS27
9、00 TYPE 1, 2, OR 3, OR ELECTROPOLISH, OR MECHANICAL POLISH. /3/ PARTS SHALL BE QUALIFIED IN A COMPLETE COUPLING ASSEMBLY IN ACCORDANCE WITH PROCUREMENT SPECIFICATION AS1895. PRODUCT SUPPLIED TO THIS SPECIFICATION SHALL BE MANUFACTURED BY AN ACCREDITED MANUFACTURER AS LISTED IN THE PERFORMANCE REVIEW
10、 INSTITUTE (PRI) QUALIFIED PRODUCTS LIST PRI-QPL-AS1895 FOR THIS STANDARD. SEE http:/www.eAuditN FOR CURRENT QPL ONLINE. THIS QPL REQUIREMENT SHALL BE IN EFFECT FOR PURCHASE ORDERS PLACED ON OR AFTER DECEMBER 31, 2019. SUPPLIERS SEEKING LISTING ON THE INITIAL QPL MUST APPLY TO PRI FOR APPROVAL NO LA
11、TER THAN JULY 1, 2019. UNTIL THE QPL IS IN EFFECT, USERS OF THIS STANDARD ARE ADVISED TO CONTROL SOURCE APPROVALS. TRANSITION TO PRI-QPL SHALL BE COMPLETED BY DECEMBER 31, 2019. 4. THIS SEAL, WHEN MATED WITH FLANGES AND COUPLINGS SPECIFIED IN AS1895 SHALL MEET ALL THE REQUIREMENTS OF SPECIFICATION A
12、S1895. 5. MARKING: MARK PACKAGING WITH SUPPLIER IDENTIFICATION AND AS1895/7-XXX PART NUMBER PER AS1895. 6. ACCEPTANCE TEST: SEALS SHALL BE LEAKAGE TESTED USING A SAMPLING PLAN PER ANSI/ASQ Z1.4 AT AN INDEX VALUE OF 1%. THE SEALS SHALL BE COMPRESSED BETWEEN FLAT, PARALLEL PLATTENS OR FLANGES TO A DEP
13、TH OF .089 TO .090 AND PRESSURIZED TO 400 PSI WHILE AT ROOM TEMPERATURE. LEAKAGE SHALL NOT EXCEED .01 SCFM PER INCH OF TUBE DIAMETER. SEAL FREE HEIGHT SHALL REMAIN WITHIN DRAWING TOLERANCE. /7/ SEALS SHALL BE MADE OUT-OF-ROUND TO SNAP FIT INTO MALE FLANGES FOR EASE OF ASSEMBLY. DIAMETERS “A“ AND “B“
14、 ARE SHOWN AS AVERAGE TO ALLOW FOR OUT OF ROUNDNESS. THE SEAL CROSS SECTION MAY BE SHAPED IN A NONRECTANGULAR FORM, BUT SHALL FIT INTO THE RECTANGULAR ENVELOPE DIMENSIONS. SEAL MANUFACTURERS ARE TO DETERMINE THE TOLERANCE TO MEET THE REQUIREMENTS OF AS1895. 8. PARTS SHALL BE INDIVIDUALLY PACKAGED AN
15、D SHALL BE HANDLED IN PACKAGES UNTIL INSTALLATION IN FLANGE. METALLIC SEALS ARE FRAGILE AND MAY BE CRUSHED EASILY. DO NOT PLACE HEAVY OBJECTS ON PACKAGES. 9. SURFACE TEXTURE: SYMBOLS PER ASME Y14.36M. REQUIREMENTS PER ASME B46.1. UNLESS OTHERWISE SPECIFIED, MACHINED SURFACES TO BE 125 MICROINCHES Ra
16、. 10. THE FINISHED SEAL SHALL BE FREE OF SHARP EDGES AND BURRS. 11. DIMENSIONING AND TOLERANCING: ANSI Y14.5M-1982. 12. DIMENSIONS IN INCHES. UNLESS OTHERWISE SPECIFIED, TOLERANCES: LINEAR DIMENSIONS .XXX = .010, .XX = .03, ANGULAR DIMENSIONS .5. 13. REVISION INDICATOR: A CHANGE BAR (I) LOCATED IN T
17、HE LEFT MARGIN IS FOR THE CONVENIENCE OF THE USER IN LOCATING AREAS WHERE TECHNICAL REVISIONS, NOT EDITORIAL CHANGES, HAVE BEEN MADE TO THE PREVIOUS ISSUE OF THIS DOCUMENT. AN (R) SYMBOL TO THE LEFT OF THE DOCUMENT TITLE INDICATES A COMPLETE REVISION OF THE DOCUMENT, INCLUDING TECHNICAL REVISIONS. CHANGE BARS AND (R) ARE NOT USED IN ORIGINAL PUBLICATIONS NOR IN DOCUMENTS THAT CONTAIN EDITORIAL CHANGES ONLY. 14. EXAMPLE PART NUMBER:
