1、 AEROSPACE STANDARD ELBOW ASSEMBLY, 90, RETAINER NUT, SHORT FLARELESS AS4670Copyright 2017 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,
2、or 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 ISSUED1992-07 REAFFIRMED 2004-07REVISED2017-08THIRD AN
3、GLE PROJECTION CUSTODIAN: G-3/G-3B REV.BFEDERAL SUPPLY CLASS 4730 AS4670 SHEET 1 OF 4 REV. B PROCUREMENT SPECIFICATION: AS18280 /4/ SAETechnicalStandardsBoard Rulesprovidethat:“Thisreportispublished bySAEto advance the state oftechnicaland engineering sciences.The use ofthisreportisentirelyvoluntary
4、anditsapplicabilityandsuitabilityforanyparticularuse,includinganypatentinfringementarising therefrom,isthe sole responsibilityoftheuser.”SAEreviewseachtechnicalreportatleasteveryfiveyearsatwhich time itmaybe revised,reaffirmed,stabilized,orcancelled.SAEinvitesyourwritten commentsandsuggestions.SAE
5、values your input. To provide feedback on this Technical Report, please visit http:/standards.sae.org/AS4670B RATIONALE ADDED CONDUCTIVE HIGH PURITY ALUMINUM COATING FOR ALUMINUM ALLOY FITTINGS. FIGURE 1 - ELBOW ASSEMBLY, 90 AEROSPACE STANDARD AS4670 SHEET 2 OF 4 REV. B ELBOW ASSEMBLY, 90, RETAINER
6、NUT, SHORT FLARELESS FIGURE 2 - INSTALLATION, RETAINED NUT AND RETAINING WIRE TABLE 1 - DIMENSIONS AND WEIGHTS BASIC NO. AS4670 /10/ /18/ SIZE CODE (NOMINAL TUBE SIZE) T THREAD PER AS8879 CLASS 3A AND CLASS 3B A B C D H J +.005 -.020 LB/EA APPROX REF ALUM LB/EA APPROX REF CRES LB/EA APPROX REF TI 20
7、 1.250 1.5625-12UNJ 1.603 1.678 .155 .517 .124 1.375 .332 .964 .560 24 1.500 1.8125-12UNJ 1.756 1.803 .180 .614 .156 1.688 .502 1.430 .828 NOTES NOTICE THIS DOCUMENT REFERENCES A PART WHICH CONTAINS CADMIUM AS A PLATING MATERIAL. CONSULT LOCAL OFFICIALS IF YOU HAVE QUESTIONS CONCERNING CADMIUMS USE.
8、 /1/ MATERIAL a. CODE LETTER T: (1) BODY: TYPE 6AL-4V TITANIUM ALLOY PER AMS4928 (2) NUT: CODE LETTER T OF AS4702 REFERENCE (TYPE 6AL-4V TITANIUM ALLOY) (3) WIRE: PER AS4701 REFERENCE (CLASS 302 OR 305 CORROSION RESISTANT STEEL) b. CODE LETTER V: (1) BODY: TYPE 15-5PH CORROSION RESISTANT STEEL PER A
9、MS5659 (2) NUT: CODE LETTER V OF AS4702 REFERENCE (TYPE 15-5PH CORROSION RESISTANT STEEL) (3) WIRE: PER AS4701 REFERENCE (CLASS 302 OR 305 CORROSION RESISTANT STEEL) c. CODE LETTER W: (1) BODY: TYPE 7075-T73 ALUMINUM ALLOY FORGING PER AMS4141 OR TYPE 7075-T7351 ALUMINUM ALLOY BAR PER AMS4124 (2) NUT
10、 CODE LETTER W OF AS4702 REFERENCE (TYPE 7075-T73 ALUMINUM ALLOY) (3) WIRE: PER AS4701 REFERENCE (CLASS 302 OR 305 CORROSION RESISTANT STEEL) AEROSPACE STANDARD AS4670 SHEET 3 OF 4 REV. B ELBOW ASSEMBLY, 90, RETAINER NUT, SHORT FLARELESS 2. HEAT TREATMENT a. MATERIAL CODE LETTER T: (1) BODY, NUT, A
11、ND WIRE: NONE b. MATERIAL CODE LETTER V: (1) BODY: HEAT TREAT TO CONDITION H-1075 PER AMS2759/3 (2) NUT: MATERIAL CODE LETTER V OF AS4702 REFERENCE (HEAT TREAT TO CONDITION H-1075) (3) WIRE: NONE c. MATERIAL CODE LETTER W: (1) BODY, NUT, AND WIRE: NONE /3/ FINISH a. MATERIAL CODE LETTER T: (1) BODY:
12、 FLUORIDE PHOSPHATE CONVERSION COAT PER AMS2486 (2) NUT: CODE LETTER T OF AS4702 REFERENCE (FLUORIDE PHOSPHATE CONVERSION COAT AND COAT WITH DRY LUBRICANT ON ID) (3) WIRE: PER AS4701 REFERENCE (PASSIVATE AND COAT WITH DRY LUBRICANT) b. MATERIAL CODE LETTER V: (1) BODY: (a) V CODE PARTS TO BE PASSIVA
13、TED ONLY WILL HAVE NO FINISH CODE LETTER AFTER THE PART NUMBER. THE FINISH WILL BE: PASSIVATE PER AMS2700 TYPE 2 OR 8. (b) 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,
14、CLASS 2. (2) NUT: CODE LETTER V OF AS4702 REFERENCE (a) NO FINISH CODE LETTER AT END OF PART NUMBER: PASSIVATE AND COAT WITH DRY FILM LUBRICANT ON ID. (b) FINISH CODE LETTER P AT END OF PART NUMBER: CADMIUM PLATE. (3) WIRE: PER AS4701 REFERENCE (PASSIVATE AND COAT WITH DRY LUBRICANT). c. MATERIAL CO
15、DE LETTER W: (1) BODY: (a) W CODE PARTS TO BE ANODIZED ONLY WILL HAVE NO FINISH CODE LETTER AFTER THE SIZE CODE IN THE PART NUMBER. THE FINISH WILL BE ANODIZE PER AMS2472 OR PER MIL-A-8625, TYPE II, CLASS 2 DYED BROWN, SIMILAR TO COLOR 10080 OF AMS-STD-595. (b) W CODE PARTS TO BE COATED WITH HIGH PU
16、RITY ALUMINUM ONLY WILL HAVE THE FINISH CODE LETTER “V” AFTER THE SIZE CODE IN THE PART NUMBER. SEE PROCUREMENT SPECIFICATION FOR REQUIREMENTS. (2) NUT: CODE LETTER W OF AS4702 REFERENCE (ANODIZE DYED BROWN AND COAT WITH DRY LUBRICANT). (3) WIRE: PER AS4701 REFERENCE (PASSIVATE AND COAT WITH DRY FIL
17、M LUBRICANT). /4/ 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 (QPL) PRI-QPL-AS18280 FOR THIS STANDARD. S
18、EE www.eAuditN FOR CURRENT QPL ONLINE. AEROSPACE STANDARD AS4670 SHEET 4 OF 4 REV. B ELBOW ASSEMBLY, 90, RETAINER NUT, SHORT FLARELESS /5/ 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 NUMBER AND MATE
19、RIAL CODE LETTER. 6. INTENDED USE: THIS PART IS DESIGNED FOR USE IN TUBING CONNECTION SYSTEMS WITH OPERATING PRESSURES AS FOLLOWS: a. SIZES -20 AND -24 TITANIUM ALLOY AND CORROSION RESISTANT STEEL AT 3000 PSI b. SIZES -20 AND -24 ALUMINUM ALLOY AT 600 PSI NOTE: THIS IS A NON-REDUCER FITTING 7. WHEN
20、MACHINED FROM BAR OR OVERSIZED FORGINGS THE CENTER BODY SECTION SHALL CONFORM TO AS1376, TABLE 10. /8/ RADIUS APPLICABLE FOR TITANIUM PARTS ONLY. /9/ ASSEMBLE AS4702 RETAINED NUT TO FITTING BODY WITH AS4701 RETAINING WIRE AS SHOWN IN FIGURE 2. THE NUT SHALL BE FREE TO ROTATE AFTER ASSEMBLY. /10/ THI
21、S IS A NONREDUCER FITTING. ALL PORTS OF ANY GIVEN PART WILL BE THE SAME SIZE. FOR REDUCERS USE AS4687. /11/ FINISH CODE LETTER “P” SHALL BE PLACED AFTER SIZE CODES ONLY FOR MATERIAL CODE “V” PARTS THAT ARE TO BE CADMIUM PLATED. FINISH CODE LETTER “V” SHALL BE PLACED AFTER SIZE CODES ONLY FOR MATERIA
22、L CODE “W” PARTS THAT ARE TO BE COATED WITH HIGH PURITY ALUMINUM TO PROVIDE LOW ELECTRICAL CONTACT RESISTANCE. NO OTHER LETTERS ARE TO FOLLOW THE SIZE CODES. 12. REVISION INDICATOR: A CHANGE BAR (l) LOCATED IN THE LEFT MARGIN IS FOR THE CONVENIENCE OF THE USER IN LOCATING AREAS WHERE TECHNICAL REVIS
23、IONS, NOT EDITORIAL CHANGES, HAVE BEEN MADE TO THE PREVIOUS ISSUE OF THIS 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 E
24、DITORIAL CHANGES ONLY. 13. INTERPRETATION OF DRAWING PER AS4296. 14. SURFACE TEXTURE: SYMBOLS PER ASME Y14.36M; REQUIREMENTS PER ASME B46.1. UNLESS OTHERWISE SPECIFIED, MACHINED SURFACES TO BE 125 MICROINCHES Ra. FORGED SURFACES MAY BE 250 MICROINCHES Ra. 15. BREAK EDGES .003 TO .015 UNLESS, OTHERWISE SPECIFIED. 16. DIMENSIONING AND TOLERANCING: ANSI Y14.5M-1982. 17. DIMENSIONS IN INCHES. UNLESS OTHERWISE SPECIFIED, TOLERANCES: LINEAR DIMENSIONS .010, ANGULAR DIMENSIONS 5 DEGREES. /18/ EXAMPLE OF PART NUMBER:
