1、 AEROSPACE STANDARD (R) BOLT, CLUSTER FITTING, DOUBLE PORT THROUGH, FLARELESS AS21941 Copyright 2007 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, r
2、ecording, 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:/www.sae.org ISSUED 2000-09REAFFIRMED 2004-04REVISED 2007-11
3、 THIRD ANGLE PROJECTION CUSTODIAN: SAE G-3/G-3B REV. A FEDERAL SUPPLY CLASS4730 AS21941 SHEET 1 OF 4 REV. A PROCUREMENT SPECIFICATION: AS18280 /10/SAE TechnicalStandards Board Rules provide that: “This report is published by SAE toadvance thestate of technical andengineering sciences.The use of this
4、report is entirely voluntary, andits applicabilityandsuitability forany particularuse,including any patent infringement arising therefrom, is thesole responsibility oftheuser.” SAE reviews each technical report at least every five yearsat which time it may be reaffirmed, revised, orcancelled.SAE inv
5、ites yourwritten commentsandsuggestions.RATIONALE THIS FITTING STANDARD IS REVISED TO INCLUDE PRI-QPL REQUIREMENTS, UPDATE THE WEIGHT VALUES IN TABLE AND MAINTAIN TO SUPPORT MILITARY AIRCRAFT CURRENTLY IN OPERATION. NOTICE THE INITIAL SAE PUBLICATION OF THIS DOCUMENT WAS TAKEN DIRECTLY FROM U.S MILI
6、TARY STANDARD MS21941D. THIS SAE STANDARD RETAINS THE SAME PART NUMBER ESTABLISHED BY THE ORIGINAL MILITARY DOCUMENT. FIGURE 1 - BOLT, CLUSTER FITTING, DOUBLE PORT, THROUGH, FLARELESS, DIMENSIONS AND CONFIGURATION TABLE 1A - BOLT, DOUBLE PORT, THROUGH, FLARELESS, LOW FLOW, DIMENSIONS (A TO C) LOW FL
7、OW SIZE DASH NO. TUBE OD THREAD S AS8879 TUBE OD THREAD T AS8879 A REF B C .062 -3L4 .1875 .3750-24 UNJF-3A .250 .4375-20 UNJF-3A 3.162 3.896 THRU -4L4 .2500 .4375-20 UNJF-3A .250 .4375-20 UNJF-3A 3.162 3.959 THRU -5L4 .3125 .5000-20 UNJF-3A .250 .4375-20 UNJF-3A 3.162 4.021 - -6L4 .3750 .5625-18 UN
8、JF-3A .250 .4375-20 UNJF-3A 3.162 4.068 .663 -8L4 .5000 .7500-16 UNJF-3A .250 .4375-20 UNJF-3A 3.162 4.161 .656 INACTIVE IN PART /14/ Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AEROSPACE STANDAR
9、D (R) BOLT, CLUSTER FITTING, DOUBLE PORT THROUGH, FLARELESS AS21941 SHEET 2 OF 4 REV. A TABLE 1B - BOLT, DOUBLE PORT, THROUGH, FLARELESS, LOW FLOW, DIMENSIONS (D TO H) H - HEX LOW FLOW SIZE DASH NO. D +.000 -.015 E .062 F .003 MIN MAX WEIGHT LB EACH APPROX -3L4 .621 - .187 .621 .628 .056 -4L4 .684 T
10、HRU .187 .684 .691 .061 -5L4 .746 2.715 .234 .746 .753 .062 -6L4 .871 2.725 .234 .871 .878 .082 -8L4 .996 2.780 .234 .996 1.003 .092 TABLE 2A - BOLT, DOUBLE PORT, THROUGH, FLARELESS, HIGH FLOW, DIMENSIONS (A TO C) HIGH FLOW SIZE DASH NO. TUBE OD THREAD S AS8879 TUBE OD THREAD T AS8879 A B C .062 -6H
11、4 .3750 .5625-18 UNJF-3A .2500 .4375-20 UNJF-3A 3.737 4.643 - -6H5 .3750 .5625-18 UNJF-3A .3125 .5000-20 UNJF-3A 3.737 4.643 - -6H6 .3750 .5625-18 UNJF-3A .3750 .5625-18 UNJF-3A 3.737 4.643 THRU -6H8 .3750 .5625-18 UNJF-3A .5000 .7500-16 UNJF-3A 3.737 4.643 THRU -8H4 .5000 .7500-16 UNJF-3A .2500 .43
12、75-20 UNJF-3A 3.737 4.736 - -8H5 .5000 .7500-16 UNJF-3A .3125 .5000-20 UNJF-3A 3.737 4.736 - -8H6 .5000 .7500-16 UNJF-3A .3750 .5625-18 UNJF-3A 3.737 4.736 - -8H8 .5000 .7500-16 UNJF-3A .5000 .7500-16 UNJF-3A 3.737 4.736 THRU -10H4 .6250 .8750-14 UNJF-3A .2500 .4375-20 UNJF-3A 3.737 4.799 .812 -10H5
13、 .6250 .8750-14 UNJF-3A .3125 .5000-20 UNJF-3A 3.737 4.799 .812 -10H6 .6250 .8750-14 UNJF-3A .3750 .5625-18 UNJF-3A 3.737 4.799 .812 -10H8 .6250 .8750-14 UNJF-3A .5000 .7500-16 UNJF-3A 3.737 4.799 .812 TABLE 2B - BOLT, DOUBLE PORT, THROUGH, FLARELESS, HIGH FLOW, DIMENSIONS (D TO H) H - HEX HIGH FLOW
14、 SIZE DASH NO. D +.000 -.015 E .062 F .003 MIN MAX WEIGHT LB EACH APPROX -6H4 .871 3.162 .297 .871 .878 .148 -6H5 .871 3.162 .297 .871 .878 .152 -6H6 .871 THRU .297 .871 .878 .158 -6H8 .871 - .422 .871 .878 .153 -8H4 .996 3.218 .422 .996 1.003 .127 -8H5 .996 3.218 .422 .996 1.003 .138 -8H6 .996 3.21
15、8 .422 .996 1.003 .143 -8H8 .996 THRU .422 .996 1.003 .149 -10H4 1.121 3.242 .422 1.121 1.128 .153 -10H5 1.121 3.242 .422 1.121 1.128 .158 -10H6 1.121 3.242 .422 1.121 1.128 .163 -10H8 1.121 THRU .422 1.121 1.128 .180 Copyright SAE International Provided by IHS under license with SAENot for ResaleNo
16、 reproduction or networking permitted without license from IHS-,-,-AEROSPACE STANDARD (R) BOLT, CLUSTER FITTING, DOUBLE PORT THROUGH, FLARELESS AS21941 SHEET 3 OF 4 REV. A NOTES: 1. MATERIAL: ALUMINUM ALLOY 7075 - SEE PROCUREMENT SPECIFICATION. 2. FINISH: SEE PROCUREMENT SPECIFICATION. 3. REMOVE BUR
17、RS AND SHARP EDGES. 4. INSTALLATION IN ACCORDANCE WITH MS21931. 5. SURFACE FINISH IN ACCORDANCE WITH ASME B46.1. UNLESS OTHERWISE SPECIFIED ALL OUTSIDE MACHINED SURFACE SHALL BE 125 in Ra AND ALL INSIDE SURFACE SHALL BE 250 inRa. 6. DIMENSIONS ARE IN INCHES. UNLESS OTHERWISE SPECIFIED TOLERANCES: DE
18、CIMALS .010, ANGLES .5. 7. DIMENSIONING AND TOLERANCING IN ACCORDANCE WITH ASME Y14.5M-1994. 8. PART NUMBERS: LETTERS L AND H IN PART NUMBERS INDICATE LOW FLOW AND HIGH FLOW RESPECTIVELY CODE “W FOLLOWING BASIC PART NUMBER MS21941 SPECIFIES 7075 ALUMINUM ALLOY NO CODE LETTER FOR ALUMINUM ALLOY 2014/
19、2024 ARE CANCELLED SUPERSEDED BY CODE “W” 7075 ALUMINUM. 2014/2024 PARTS ARE NO LONGER AVAILABLE FOR PROCUREMENT AFTER 2006. EXAMPLES OF PART NUMBERS: MS21941W8L4 - BOLT, .5000 TUBING TO .2500 TUBING, LOW FLOW, .7075 ALUMINUM ALLOY MS21941W10H4 - BOLT, .6250 TUBING TO .2500 TUBING, HIGH FLOW, 7075 A
20、LUMINUM ALLOY 9. SEE TABLE 3 FOR CANCELLED AND SUPERSEDED DOCUMENT AND PART NUMBERS. TABLE 3 - CANCELLED AND SUPERSEDED DOCUMENT AND PART NUMBERS CANCELLED DOCUMENT NUMBER PREVIOUS PART NUMBERS SUPERSEDING DOCUMENT NUMBER RETAINING PART NUMBERS MS21941 MS21941-3L4 AS21941 MS21941W3L4 MS21941 MS21941
21、W3L4 AS21941 MS21941W3L4 MS21941 MS21941-4L4 AS21941 MS21941W4L4 MS21941 MS21941W4L4 AS21941 MS21941W4L4 MS21941 MS21941-5L4 AS21941 MS21941W5L4 MS21941 MS21941W5L4 AS21941 MS21941W5L4 MS21941 MS21941-6L4 AS21941 MS21941W6L4 MS21941 MS21941W6L4 AS21941 MS21941W6L4 MS21941 MS21941-8L4 AS21941 MS21941
22、W8L4 MS21941 MS21941W8L4 AS21941 MS21941W8L4 MS21941 MS21941-6H4 AS21941 MS21941W6H4 MS21941 MS21941W6H4 AS21941 MS21941W6H4MS21941 MS21941-6H5 AS21941 MS21941W6H5 MS21941 MS21941W6H5 AS21941 MS21941W6H5Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction o
23、r networking permitted without license from IHS-,-,-AEROSPACE STANDARD (R) BOLT, CLUSTER FITTING, DOUBLE PORT THROUGH, FLARELESS AS21941 SHEET 4 OF 4 REV. A TABLE 3 - CANCELLED AND SUPERSEDED DOCUMENT AND PART NUMBERS (CONTINUED) CANCELLED DOCUMENT NUMBER PREVIOUS PART NUMBERS SUPERSEDING DOCUMENT N
24、UMBER RETAINING PART NUMBERS MS21941 MS21941-6H6 AS21941 MS21941W6H6 MS21941 MS21941W6H6 AS21941 MS21941W6H6MS21941 MS21941-6H8 AS21941 MS21941W6H8 MS21941 MS21941W6H8 AS21941 MS21941W6H8MS21941 MS21941-8H4 AS21941 MS21941W8H4 MS21941 MS21941W8H4 AS21941 MS21941W8H4MS21941 MS21941-8H5 AS21941 MS2194
25、1W8H5 MS21941 MS21941W8H5 AS21941 MS21941W8H5MS21941 MS21941-8H6 AS21941 MS21941W8H6 MS21941 MS21941W8H6 AS21941 MS21941W8H6MS21941 MS21941-8H8 AS21941 MS21941W8H8 MS21941 MS21941W8H8 AS21941 MS21941W8H8MS21941 MS21941-10H4 AS21941 MS21941W10H4 MS21941 MS21941W10H4 AS21941 MS21941W10H4MS21941 MS2194
26、1-10H5 AS21941 MS21941W10H5 MS21941 MS21941W10H5 AS21941 MS21941W10H5MS21941 MS21941-10H6 AS21941 MS21941W10H6 MS21941 MS21941W10H6 AS21941 MS21941W10H6MS21941 MS21941-10H8 AS21941 MS21941W10H8 MS21941 MS21941W10H8 AS21941 MS21941W10H8/10/ PROCUREMENT SPECIFICATION: AS18280 EXCEPT AS SPECIFIED ON TH
27、IS STANDARD. PRODUCT SUPPLIED TO THIS SPECIFICATION SHALL BE MANUFACTURED BY AN ACCREDITED MANUFACTURER AS LISTED IN THE PERFORMANCE REVIEW INSTITUTE (PRI) QUALIFIED PRODUCTS LIST FOR PRI-QPL-AS18280 FOR THIS STANDARD. SEE FOR THE CURRENT QPL ONLINE. 11. INTERPRETATION OF DRAWING PER ARP4296. 12. F
28、LUID PASSAGE HOLE CONTOUR ARP4266 (OPTIONAL). 13. IN THE EVENT OF A CONFLICT BETWEEN THE TEXT OF THIS STANDARD AND THE REFERENCED CITED HEREIN, THE TEXT OF THIS STANDARD SHALL TAKE PRECEDENCE. /14/ THESE PARTS ARE INACTIVE FOR NEW DESIGN DATED 31 DECEMBER 1989. FOR NEW DESIGN, SEE STANDARD REDUCER F
29、ITTINGS. 15. THE CHANGE BAR ( l ) LOCATED IN THE 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 THE DOCUMENT. AN (R) SYMBOL TO THE LEFT OF THE DOCUMENT TITLE INDICATES A COMPLETE REVISION OF THE DOCUMENT. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
