1、 AEROSPACE STANDARD NUT, BULKHEAD, SHORT FLARELESS AS4678Copyright 2009 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 otherwise, witho
2、ut 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 1992-07REAFFIRMED 2007-10 REVISED 2009-02THIRD ANGLE PROJECTION CUSTO
3、DIAN: G-3/G-3B REV.C FEDERAL SUPPLY CLASS 4730 AS4678 SHEET 1 OF 3 REV. C PROCUREMENT SPECIFICATION: /5/ AS18280SAE TechnicalStandards Board Rules provide that: “This report is published by SAE toadvance thestate of technical andengineering sciences. Theuse of thisreport is entirely voluntary, andit
4、s 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 invites yourwritten commentsandsugges
5、tions. SAE values your input. To provide feedbackon this Technical Report, please visit http:/www.sae.org/technical/standards/AS4678C RATIONALE PROCUREMENT SPECIFICATION CHANGED FROM AS4444 TO AS18280 AND PROCUREMENT NOTE UPDATED. WARNING NOTICE FOR CADMIUM PLATING HAS BEEN INSERTED. UPDATES: MIL-S-
6、8879 CLASS B TO AS8879 CLASS 3B. MATERIAL AND FINISH: FINISH SPECIFICATIONS UPDATED. FIGURE 1 - NUT, BULKHEAD TABLE 1 - DIMENSIONS AND WEIGHTS BASIC NO. AS4678 /15/ SIZE CODE (NOMINAL TUBE SIZE) T THREAD PER AS8879 B H K LB/EA APPROX REF ALUM LB/EA APPROX REF CRES LB/EA APPROX REF TI 20 1.250 1.5625
7、-12 UNJ-3B 1.572 1.863-1.880 1.853 .0570 .158 .090 24 1.500 1.8125-12 UNJ-3B 1.822 2.109-2.135 2.099 .0671 .186 .106 28 1.750 2.1250-12 UNJ-3B 2.135 2.422-2.448 2.412 .0808 .224 .128 Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitt
8、ed without license from IHS-,-,-AEROSPACE STANDARD AS4678 SHEET 2 OF 3 REV. C NUT, BULKHEAD, SHORT FLARELESS NOTES: NOTICE THIS DOCUMENT REFERENCES A PART WHICH CONTAINS CADMIUM AS A PLATING MATERIAL. CONSULT LOCAL OFFICIALS IF YOU HAVE QUESTIONS CONCERNING CADMIUMS USE. /1/ MATERIAL: a. CODE LETTER
9、 T - TYPE 6AL-4V TITANIUM ALLOY BAR PER AMS4928 b. CODE LETTER V - TYPE 15-5PH CORROSION RESISTANT STEEL BAR PER AMS5659 c. CODE LETTER W - TYPE 7075-T7351 ALUMINUM ALLOY BAR PER AMS4124 OR TYPE 7075-T73 ALUMINUM ALLOY BAR PER AMS-QQ-A-225/9 2 HEAT TREATMENT: a. MATERIAL CODE LETTER T - NONE b. MATE
10、RIAL CODE LETTER V - HEAT TREAT TO CONDITION H-1075 PER AMS2759/3 c. MATERIAL CODE LETTER W - NONE /3/ FINISH: a. MATERIAL CODE LETTER T - ANODIZE PER AMS2488 OR FLUORIDE PHOSPHATE CONVERSION COAT PER AMS2486. b. MATERIAL CODE LETTER V: (1) V CODE PARTS TO BE PASSIVATED ONLY WILL HAVE NO FINISH CODE
11、 LETTER AFTER THE SIZE CODE IN THE PART NUMBER. THE FINISH WILL BE: PASSIVATE PER AMS2700 PER PROCUREMENT SPECIFICATION. (2) V CODE PARTS TO BE CADMIUM PLATED ONLY WILL HAVE THE FINISH CODE LETTER “P“ AFTER THE SIZE CODE IN THE PART NUMBER. THE FINISH WILL BE: CADMIUM PLATE PER AMS-QQ-P-416, TYPE II
12、, CLASS 2. c. MATERIAL CODE LETTER W - ANODIZE PER AMS2472 OR PER MIL-A-8625, TYPE II, CLASS 2 DYED BROWN, SIMILAR TO COLOR 10080 OF FED-STD-595. /4/ IDENTIFICATION AT LOCATION SHOWN: MARK PER AS478 CLASS C OR D OR METHOD 7A3, 15A3, OR 15B. MANUFACTURERS NAME, TRADEMARK OR CAGE CODE, BASIC PART NUMB
13、ER AND MATERIAL CODE LETTER. /5/ PROCUREMENT 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 PRI-QPL-AS18280 FOR THIS ST
14、ANDARD. SEE http:/ FOR CURRENT QPL ONLINE. NOTE: PRI-QPL LIMITATION - WITH REVISION C OF THIS STANDARD THE PROCUREMENT SPECIFICATION HAS BEEN CHANGED FROM AS4444 FOR 5000 psi TO AS18280 FOR 3000 psi. USERS OF THIS FITTING FOR 5000 psi APPLICATIONS PER AS4444 ARE ADVISED TO CONTROL SOURCE APPROVAL BY
15、 STANDARD PAGE SUPPLEMENT OR SIMILAR MEANS. 6. THIS PART IS DESIGNED FOR USE WITH AS4659 FITTING ENDS WITH OR WITHOUT AN AS4679 WASHER IN SYSTEMS WITH OPERATING PRESSURES AS FOLLOWS: a. SIZES -20 AND -24 TITANIUM ALLOY AND CORROSION RESISTANT STEEL AT 3000 psi. b. SIZE -28 TITANIUM ALLOY AND CORROSI
16、ON RESISTANT STEEL AND SIZES -20, -24 AND -28 ALUMINUM ALLOY AT 600 psi. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AEROSPACE STANDARD AS4678 SHEET 3 OF 3 REV. C NUT, BULKHEAD, SHORT FLARELESS /
17、7/ THE HEX CORNERS MAY BE ROUNDED PER ARP1942. 8. 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 THIS DOCUMENT. AN (R) SYMBOL TO THE LEFT OF THE DOCUMENT TITLE
18、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. 9. INVENTORIED PARTS CONFORMING TO THE PREVIOUS “LETTER CHANGE“ MAY BE USED TO DEPLETION /5/. 10. INTERPRETAT
19、ION OF DRAWING PER ARP4296. 11. SURFACE TEXTURE: SYMBOLS PER ASME Y14.36M; REQUIREMENTS PER ASME B46.1. UNLESS OTHERWISE SPECIFIED, MACHINED SURFACES TO BE 125 in Ra. 12. BREAK EDGES .003 TO .015 UNLESS OTHERWISE SPECIFIED. 13. DIMENSIONING AND TOLERANCING: ASME Y14.5M-1994. 14. DIMENSIONS IN INCHES. UNLESS OTHERWISE SPECIFIED, TOLERANCES: LINEAR DIMENSIONS .010, ANGULAR DIMENSIONS 5 DEGREES. /15/ Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
