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1、 AEROSPACE STANDARD FITTING, LUBRICATION, HYDRAULIC, THROAT OR SURFACE CHECK, .250-28 TAPER THREADS, CORROSION RESISTANT STEEL, TYPE VII AS15720 Copyright 2007 SAE International All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any fo
2、rm 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: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/
3、www.sae.org ISSUED 2001-05 REVISED 2007-07 THIRD ANGLE PROJECTION CUSTODIAN: SAE G-3/G-3B REV. B FEDERAL SUPPLY CLASS 4730 AS15720 SHEET 1 OF 3 REV. B PROCUREMENT SPECIFICATION: /5/ AS35411 SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of tec
4、hnical 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 sole responsibility of the user.” SAE reviews each technical report at least every five years at wh
5、ich time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. RATIONALE REVISE AS15720 TO ADD ZINC NICKEL FINISH, PIPE THREAD NOTE FOR CLARITY AND QPL/QML NOTE. FIGURE 1 - FITTING, STRAIGHT FIGURE 2 - FITTING, ELBOW Copyright SAE International Provided by I
6、HS under license with SAELicensee=Defense Supply Ctr/5913977001 Not for Resale, 12/04/2007 18:24:45 MSTNo reproduction or networking permitted without license from IHS -,-,- AEROSPACE STANDARD FITTING, LUBRICATION, HYDRAULIC, THROAT OR SURFACE CHECK, .250-28 TAPER THREADS, CORROSION RESISTANT STEEL,
7、 TYPE VII AS15720 REV. B AS15720 SHEET 2 OF 3 REV. B B A D C F BODY CONTOURS OPTIONAL WITH MANUFACTURERS THREAD T .036 MAX x 455 /9/ /7/ FIGURE 3 - FITTING, ELBOW, 90 TABLE 1 - DIMENSIONS AD WEIGHTS PART NUMBER FIG. THREAD T PER FED-STD-H28/2 A .031 B /6/ C MAX D .062 E /8/ .003 F 5 LB/100 APPROX. R
8、EF. CRES AS15720-1 AS15720-2 AS15720-3 1 2 3 .250-28 UNS-2A .250-28 UNS-2A .250-28 UNS-2A .188 .188 .188 .1094 .1094 .1094 .406 .531 .500 .875 .781 .312 .375 .375 45 90 NOTES: 1. MATERIAL: CORROSION RESISTANT STEEL. SEE PROCUREMENT SPECIFICATION. 2. HEAT TREATMENT: NONE. 3. FINISH: CODE LETTER U - Z
9、INC NICKEL PLATE, SEE PROCUREMENT SPECIFICATION. 4. IDENTIFICATION: MARK PER AS478 METHOD 35D MANUFACTURERS NAME, CAGE CODE OR TRADEMARK, AND PART NUMBER. /5/ PROCUREMENT SPECIFICATION: AS35411 EXCEPT AS SPECIFIED ON THIS STANDARD. THE DRAWING AND ALL THE SPECIFIED DOCUMENTS DEFINE THE REQUIREMENTS
10、FOR THE END PRODUCT. ALL THE REQUIREMENTS MUST BE MET IN ORDER TO IDENTIFY THE ITEM WITH THAT PART NUMBER. USERS OF THIS STANDARD ARE ADVISED TO CONTROL SOURCE APPROVAL BY STANDARD PAGE SUPPLEMENT OR SIMILAR MEANS. /6/ MINIMUM EFFECTIVE THREAD LENGTH. /7/ SURFACE OR THROAT CHECK OPTIONAL. /8/ “E” DI
11、MENSION ALTERNATE FOR -2 AND -3: .438. Copyright SAE International Provided by IHS under license with SAELicensee=Defense Supply Ctr/5913977001 Not for Resale, 12/04/2007 18:24:45 MSTNo reproduction or networking permitted without license from IHS -,-,- AEROSPACE STANDARD FITTING, LUBRICATION, HYDRA
12、ULIC, THROAT OR SURFACE CHECK, .250-28 TAPER THREADS, CORROSION RESISTANT STEEL, TYPE VII AS15720 REV. B AS15720 SHEET 3 OF 3 REV. B /9/ FITTING END IN ACCORDANCE WITH AS15000, STYLE OPTIONAL. 10. INTENDED USE: THIS PART IS INTENDED FOR USE IN LUBRICATING CONNECTIONS AT PRESSURES TO 6000 psi. 11. TH
13、IS STANDARD IS A CONVERSION OF MILITARY STANDARD MS15720, FITTINGS, LUBRICATION (HYDRAULIC) THROAT OR SURFACE CHECK, 1/4-28 TAPER THREADS, CORROSION RESISTANT STEEL, TYPE VII, AND IS NOT A WORD-FOR-WORD CONVERSION. 12. INTERPRETATION OF DRAWING PER ARP4296. 13. SURFACE TEXTURE: SYMBOLS PER ASME Y14.
14、36M; REQUIREMENTS PER ASME B46.1. UNLESS OTHERWISE SPECIFIED, MACHINED SURFACES TO BE 125 in Ra. SURFACES OF HEX FLATS MAY BE 250 in Ra. 14. DIMENSIONING AND TOLERANCING: ASME Y14.5M-1994. 15. DIMENSIONS ARE IN INCHES. UNLESS OTHERWISE SPECIFIED, TOLERANCES: LINEAR DIMENSIONS .010, ANGULAR DIMENSION
15、S 030. 16. BREAK EDGES .003 TO .015 UNLESS OTHERWISE SPECIFIED. 17. EXAMPLE OF PART NUMBER: 18. THIS SPECIFICATION HAS INTERNATIONAL STANDARDIZATION AGREEMENT. SEE AS35411. 19. THE CHANGE BAR ( I ) LOCATED IN THE LEFT MARGIN IS FOR THE CONVENIENCE OF THE USER IN LOCATING AREAS WHERE TECHNICAL REVISI
16、ONS HAVE BEEN MADE TO THE PREVIOUS ISSUE OF THIS STANDARD. AN (R) SYMBOL TO THE LEFT OF THE DOCUMENT TITLE INDICATES A COMPLETE REVISION OF THE DOCUMENT. 20. 1/4 - 28 UNIFIED NATIONAL FOR MOF THREAD WITH 3/4 in DIAMETER TAPER PER FOOT. BASIC PITCH DIAMETER AT SMALL END OF THREAD EQUALS 0.2224 TO 0.2
17、257. FITTINGS SHALL BE SUITABLE FOR INSTALLATION TIGHTLY INTO 1/4 - 28 UNF - 3B THREADED HOLE. 21. INVENTORIED PARTS CONFORMING TO THE PREVIOUS LETTER CHANGE MAY BE USED TO DEPLETION. Copyright SAE International Provided by IHS under license with SAELicensee=Defense Supply Ctr/5913977001 Not for Resale, 12/04/2007 18:24:45 MSTNo reproduction or networking permitted without license from IHS -,-,-