1、 AEROSPACE STANDARD BODY, CLUSTER FITTING, TWO WAY, 180, FLARELESS AS21944Copyright 2015 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
2、 otherwise, 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 ISSUED 2000-09REVISED 2008-06 REAFFIRMED 2015-04THIRD AN
3、GLE PROJECTION CUSTODIAN: G-3/G-3B REV.B FEDERAL SUPPLY CLASS 4730AS21944 SHEET 1 OF 3 REV. B PROCUREMENT SPECIFICATION: AS18280 /10/SAE Technical Standards Board Rules provide that: “This report ispublished by SAE toadvance thestate of technicalandengineering sciences. Theuse ofthisreport is entire
4、lyvoluntary, andits applicability and suitability forany particularuse,including any patent infringement arising therefrom, isthe soleresponsibilityofthe user.”SAE reviews eachtechnicalreport at least every five years at which time itmay berevised,reaffirmed, stabilized, orcancelled. SAE invites you
5、rwrittencomments andsuggestions. SAE values your input. To provide feedbackon this Technical Report, please visit http:/www.sae.org/technical/standards/AS21944B RATIONALE AS21944B HAS BEEN REAFFIRMED TO COMPLY WITH THE SAE FIVE-YEAR REVIEW POLICY. NOTICE THE INITIAL SAE PUBLICATION OF THIS DOCUMENT
6、WAS TAKEN DIRECTLY FROM U.S MILITARY STANDARD MS21944C. THIS SAE STANDARD RETAINS THE SAME PART NUMBER ESTABLISHED BY THE ORIGINAL MILITARY DOCUMENT. FIGURE 1 - BOLT, CLUSTER FITTING, TWO WAY, 180 FLARELESS DIMENSIONS AND CONFIGURATION TABLE 1A - BODY, TWO WAY, 180 FLARELESS, LOW FLOW DIMENSIONS LOW
7、 FLOW SIZE DASH NO. TUBE OD THREAD T AS8879 B C D E WEIGHT LB EACH APPROX -3L .1875 .3750-24 UNJF-3A .500 .484 .710 1.047 .031 -4L .2500 .4375-20 UNJF-3A .500 .531 .710 1.094 .032 -5L .3125 .5000-20 UNJF-3A .500 .531 .710 1.094 .033 -6L .3750 .5625-18 UNJF-3A .500 .562 .710 1.125 .033 INACTIVE PART
8、/14/ AEROSPACE STANDARD AS21944 SHEET 2 OF 3 REV. B BODY, CLUSTER FITTING, TWO WAY, 180, FLARELESS TABLE 1B - BODY, TWO WAY, 180 FLARELESS, HIGH FLOW DIMENSIONS HIGH FLOW SIZE DASH NO. TUBE OD THREAD T AS8879 B C D E WEIGHT LB EACH APPROX -4H .2500 .4375-20 UNJF-3A .594 .531 .710 1.343 .069 -5H .312
9、5 .5000-20 UNJF-3A .594 .531 .710 1.343 .071 -6H .3750 .5625-18 UNJF-3A .594 .562 .710 1.375 .072 -8H .5000 .7500-16 UNJF-3A .594 .656 .750 1.469 .073 NOTES: 1. MATERIALS: ALUMINUM ALLOY 7075 SEE PROCUREMENT SPECIFICATION. 2. FINISH: SEE PROCUREMENT SPECIFICATION. 3. REMOVE BURRS AND SHARP EDGES. 4.
10、 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 INCHES. UNLESS OTHERWISE SPECIFIED TOLERANCES DECIMALS .010, ANGLES .5
11、. 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 MS21944 SPECIFIES 7075 ALUMINUM ALLOY. NO CODE LETTER FOR ALUMINUM ALLOY 2014/2024 ARE CANCELL
12、ED SUPERSEDED BY CODE “W” 7075 ALUMINUM. 2014/2024 PARTS ARE NO LONGER AVAILABLE FOR PROCUREMENT AFTER 2006. EXAMPLES OF PART NUMBERS: MS21944W5L - BOLT, .3125 TUBING, LOW FLOW, 7075 ALUMINUM ALLOY MS21944W5H - BOLT, .3125 TUBING, HIGH FLOW, 7075 ALUMINUM ALLOY AEROSPACE STANDARD AS21944 SHEET 3 OF
13、3 REV. B BODY, CLUSTER FITTING, TWO WAY, 180, FLARELESS 9. SEE TABLE 2 FOR CANCELLED AND SUPERSEDED DOCUMENT AND PART NUMBERS. TABLE 2 - CANCELLED AND SUPERSEDED DOCUMENT AND PART NUMBERS CANCELLED DOCUMENT NUMBER PREVIOUS PART NUMBERSSUPERSEDINGDOCUMENT NUMBER RETAINING PART NUMBERS MS21944 MS21944
14、-3L AS21944 MS21944W3L MS21944 MS21944W3L AS21944 MS21944W3L MS21944 MS21944-4L AS21944 MS21944W4L MS21944 MS21944W4L AS21944 MS21944W4L MS21944 MS21944-5L AS21944 MS21944W5L MS21944 MS21944W5L AS21944 MS21944W5L MS21944 MS21944-6L AS21944 MS21944W6L MS21944 MS21944W6L AS21944 MS21944W6L MS21944 MS2
15、1944-4H AS21944 MS21944W4H MS21944 MS21944W4H AS21944 MS21944W4H MS21944 MS21944-5H AS21944 MS21944W5H MS21944 MS21944W5H AS21944 MS21944W5H MS21944 MS21944-6H AS21944 MS21944W6H MS21944 MS21944W6H AS21944 MS21944W6H MS21944 MS21944-8H AS21944 MS21944W8H MS21944 MS21944W8H AS21944 MS21944W8H /10/ PR
16、OCUREMENT SPECIFICATION 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
17、 ONLINE. 11. INTERPRETATION 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
18、 31 DECEMBER 1987. FOR NEW DESIGN SEE STANDARD REDUCER FITTING. 15. A 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, INCLUDING TECHNICAL REVISIONS. CHANGE BARS AND (R) ARE NOT USED IN ORIGINAL PUBLICATIONS, NOR IN DOCUMENTS THAT CONTAIN EDITORIAL CHANGES ONLY.
