1、 AEROSPACE STANDARD (R) BOLT, CLUSTER FITTING, SINGLE PORT THROUGH, FLARELESS AS21939 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 AS21939 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, UPDATED 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 MIL
6、ITARY STANDARD MS21939D. THIS SAE STANDARD RETAINS THE SAME PART NUMBER ESTABLISHED BY THE ORIGINAL MILITARY DOCUMENT. FIGURE 1 - BOLT, CLUSTER FITTING, SINGLE PORT THROUGH, FLARELESS, DIMENSIONS AND CONFIGURATION TABLE 1A - BOLT, CLUSTER FITTING, SINGLE PORT, THROUGH, FLARELESS, LOW FLOW, DIMENSION
7、S (A TO D) LOW FLOW SIZE DASH NO. TUBE OD THREAD S AS8879 TUBE OD THREAD T AS8879 A REF B C .062 D +.000 -.015 -3L4 .1875 .3750-24 UNJF-3A .2500 .4375-20 UNJF-3A 2.072 2.806 THRU .621 -4L4 .2500 .4375-20 UNJF-3A .2500 .4375-20 UNJF-3A 2.072 2.869 THRU .684 -5L4 .3125 .5000-20 UNJF-3A .2500 .4375-20
8、UNJF-3A 2.072 2.931 - .746 -6L4 .3750 .5625-18 UNJF-3A .2500 .4375-20 UNJF-3A 2.072 2.978 .663 .871 -8L4 .5000 .7500-16 UNJF-3A .2500 .4375-20 UNJF-3A 2.072 3.071 .656 .996 INACTIVE PART /14/ Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networkin
9、g permitted without license from IHS-,-,-AEROSPACE STANDARD (R) BOLT, CLUSTER FITTING, SINGLE PORT THROUGH, FLARELESS AS21939 SHEET 2 OF 4 REV. A TABLE 1B - BOLT, CLUSTER FITTING, SINGLE PORT, THROUGH, FLARELESS, LOW FLOW DIMENSIONS (E TO H) H HEX LOW FLOW SIZE DASH NO. TUBE OD THREAD S AS8879 TUBE
10、OD THREAD T AS8879 E .062 F .003 MIN MAX WT LB EACH APPROX -3L4 .1875 .3750-24 UNJF-3A .2500 .4375-20 UNJF-3A - .187 .621 .628 .012 -4L4 .2500 .4375-20 UNJF-3A .2500 .4375-20 UNJF-3A 1.715 .187 .684 .691 .014 -5L4 .3125 .5000-20 UNJF-3A .2500 .4375-20 UNJF-3A 1.750 .234 .746 .753 .017 -6L4 .3750 .56
11、25-18 UNJF-3A .2500 .4375-20 UNJF-3A 1.750 .234 .871 .878 .022 -8L4 .5000 .7500-16 UNJF-3A .2500 .4375-20 UNJF-3A 1.844 .234 .996 1.003 .030 TABLE 2A - BOLT, CLUSTER FITTING, SINGLE PORT, THROUGH, FLARELESS, HIGH FLOW, DIMENSIONS (A TO D) HIGH FLOW SIZE DASH NO. TUBE OD THREAD S AS8879 TUBE OD THREA
12、D T AS8879 A REF B C .062 D +.000 -.015 -6H4 .3750 .5625-18 UNJF-3A .2500 .4375-20 UNJF-3A 2.353 3.259 - .871 -6H5 .3750 .5625-18 UNJF-3A .3125 .5000-20 UNJF-3A 2.353 3.259 - .871 -6H6 .3750 .5625-18 UNJF-3A .3750 .5625-18 UNJF-3A 2.359 3.265 THRU .871 -6H8 .3750 .5625-18 UNJF-3A .5000 .7500-20 UNJF
13、-3A 2.460 3.366 THRU .871 -8H4 .5000 .7500-16 UNJF-3A .2500 .4375-20 UNJF-3A 2.353 3.352 - .996 -8H5 .5000 .7500-16 UNJF-3A .3125 .5000-20 UNJF-3A 2.353 3.352 - .996 -8H6 .5000 .7500-16 UNJF-3A .3750 .5625-18 UNJF-3A 2.359 3.358 - .996 -8H8 .5000 .7500-16 UNJF-3A .5000 .7500-16 UNJF-3A 2.460 3.459 T
14、HRU .996 -10H4 .6250 .8750-14 UNJF-3A .2500 .4375-20 UNJF-3A 2.353 3.415 .812 1.121 -10H5 .6250 .8750-14 UNJF-3A .3125 .5000-20 UNJF-3A 2.353 3.415 .812 1.121 -10H6 .6250 .8750-14 UNJF-3A .3750 .5625-18 UNJF-3A 2.359 3.421 .812 1.121 -10H8 .6250 .8750-14 UNJF-3A .5000 .7500-16 UNJF-3A 2.460 3.522 .8
15、12 1.121 TABLE 2B - BOLT, CLUSTER FITTING, SINGLE PORT, THROUGH, FLARELESS, HIGH FLOW, DIMENSIONS (E TO H) H - HEX HIGH FLOW SIZE DASH NO. TUBE OD THREAD S AS8879 TUBE OD THREAD T AS8879 E .062 F .003 MIN MAX WEIGHT LB EACH APPROX -6H4 .3750 .5625-18 UNJF-3A .2500 .4375-20 UNJF-3A 1.913 .297 .871 .8
16、78 .087 -6H5 .3750 .5625-18 UNJF-3A .3125 .5000-20 UNJF-3A 1.913 .297 .871 .878 .090 -6H6 .3750 .5625-18 UNJF-3A .3750 .5625-18 UNJF-3A THRU .297 .871 .878 .094 -6H8 .3750 .5625-18 UNJF-3A .5000 .7500-20 UNJF-3A - .422 .871 .878 .097 -8H4 .5000 .7500-16 UNJF-3A .2500 .4375-20 UNJF-3A 2.030 .422 .996
17、 1.003 .099 -8H5 .5000 .7500-16 UNJF-3A .3125 .5000-20 UNJF-3A 2.030 .422 .996 1.003 .105 -8H6 .5000 .7500-16 UNJF-3A .3750 .5625-18 UNJF-3A 2.030 .422 .996 1.003 .110 -8H8 .5000 .7500-16 UNJF-3A .5000 .7500-16 UNJF-3A THRU .422 .996 1.003 .116 -10H4 .6250 .8750-14 UNJF-3A .2500 .4375-20 UNJF-3A 2.0
18、55 .422 1.121 1.128 .091 -10H5 .6250 .8750-14 UNJF-3A .3125 .5000-20 UNJF-3A 2.055 .422 1.121 1.128 .109 -10H6 .6250 .8750-14 UNJF-3A .3750 .5625-18 UNJF-3A 2.055 .422 1.121 1.128 .125 -10H8 .6250 .8750-14 UNJF-3A .5000 .7500-16 UNJF-3A THRU .422 1.121 1.128 .135 Copyright SAE International Provided
19、 by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AEROSPACE STANDARD (R) BOLT, CLUSTER FITTING, SINGLE PORT THROUGH, FLARELESS AS21939 SHEET 3 OF 4 REV. A NOTES: 1. MATERIALS: ALUMINUM ALLOY 7075 SEE PROCUREMENT SPECIFICATION. 2. FINISH:
20、 SEE PROCUREMENT SPECIFICATION. 3. REMOVE BURRS 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 in Ra. 6. DIMENSIONS ARE IN INC
21、HES. UNLESS OTHERWISE SPECIFIED TOLERANCES: DECIMALS .010, ANGLES .5. 7. DIMENSIONING AND TOLERANCING IN ACCORDANCE WITH ASME Y14.5M-1994. 8. PART NUMBERS: LETTERS “L” AND “H” IN PART NUMBER INDICATE LOW FLOW AND HIGH FLOW RESPECTIVELY CODE “W FOLLOWING BASIC PART NUMBER MS21939 SPECIFIES 7075 ALUMI
22、NUM ALLOY NO CODE LETTER FOR ALUMINUM ALLOY 2014/2024 ARE CANCELLED SUPERSEDED BY CODE “W” 7075 ALUMINUM. 2014/2024 PARTS ARE NO LONGER AVAILABLE FOR PROCUREMENT AFTER 2006. EXAMPLES OF PART NUMBERS: MS21939W8L4 - BOLT, .5000 TO .2500 TUBING, LOW FLOW, 7075 ALUMINUM ALLOY MS21939W10H5 - BOLT, .6250
23、TO .3125 TUBING, HIGH FLOW, 7075 ALUMINUM 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 MS21939 MS21939-3L4 A
24、S21939 MS21939W3L4 MS21939 MS21939W3L4 AS21939 MS21939W3L4 MS21939 MS21939-4L4 AS21939 MS21939W4L4 MS21939 MS21939W4L4 AS21939 MS21939W4L4 MS21939 MS21939-5L4 AS21939 MS21939W5L4 MS21939 MS21939W5L4 AS21939 MS21939W5L4 MS21939 MS21939-6L4 AS21939 MS21939W6L4 MS21939 MS21939W6L4 AS21939 MS21939W6L4 M
25、S21939 MS21939-8L4 AS21939 MS21939W8L4 MS21939 MS21939W8L4 AS21939 MS21939W8L4 MS21939 MS21939-6H4 AS21939 MS21939W6H4 MS21939 MS21939W6H4 AS21939 MS21939W6H4 MS21939 MS21939-6H5 AS21939 MS21939W6H5 MS21939 MS21939W6H5 AS21939 MS21939W6H5 MS21939 MS21939-6H6 AS21939 MS21939W6H6 MS21939 MS21939W6H6 A
26、S21939 MS21939W6H6 MS21939 MS21939-6H8 AS21939 MS21939W6H8 MS21939 MS21939W6H8 AS21939 MS21939W6H8 Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AEROSPACE STANDARD (R) BOLT, CLUSTER FITTING, SINGLE
27、 PORT THROUGH, FLARELESS AS21939 SHEET 4 OF 4 REV. A TABLE 3 - CANCELLED AND SUPERSEDED DOCUMENT AND PART NUMBERS (CONTINUED) CANCELLED DOCUMENT NUMBER PREVIOUS PART NUMBERS SUPERSEDING DOCUMENT NUMBER RETAINING PART NUMBERS MS21939 MS21939-8H4 AS21939 MS21939W8H4 MS21939 MS21939W8H4 AS21939 MS21939
28、W8H4 MS21939 MS21939-8H5 AS21939 MS21939W8H5 MS21939 MS21939W8H5 AS21939 MS21939W8H5 MS21939 MS21939-8H6 AS21939 MS21939W8H6 MS21939 MS21939W8H6 AS21939 MS21939W8H6 MS21939 MS21939-8H8 AS21939 MS21939W8H8 MS21939 MS21939W8H8 AS21939 MS21939W8H8 MS21939 MS21939-10H4 AS21939 MS21939W10H4 MS21939 MS219
29、39W10H4 AS21939 MS21939W10H4MS21939 MS21939-10H5 AS21939 MS21939W10H5 MS21939 MS21939W10H5 AS21939 MS21939W10H5MS21939 MS21939-10H6 AS21939 MS21939W10H6 MS21939 MS21939W10H6 AS21939 MS21939W10H6MS21939 MS21939-10H8 AS21939 MS21939W10H8 MS21939 MS21939W10H8 AS21939 MS21939W10H8/10/ PROCUREMENT SPECIF
30、ICATION: AS18280 EXCEPT AS SPECIFIED ON THIS 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. IN
31、TERPRETATION OF DRAWING PER ARP4296. 12. FLUID 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 19
32、89. FOR NEW DESIGN SEE STANDARD REDUCER FITTINGS. 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-,-,-
