1、 AEROSPACE STANDARD FITTING ASSEMBLY, ELBOW, 90, FLARELESS AND SHORT FLARELESS, REDUCER, RETAINED NUT AS4687Copyright 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, mecha
2、nical, photocopying, recording, 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 ISSUED1992-07REAFFIRME
3、D 2015-04REVISED2017-08THIRD ANGLE PROJECTION CUSTODIAN: G-3/G-3B REV.E FEDERAL SUPPLY CLASS 4730 AS4687 SHEET 1 OF 5 REV. E PROCUREMENT SPECIFICATION: AS18280 /4/ SAE Technical Standards Board Rules provide that: “This report is published by SAEtoadvance thestate of technicaland engineering science
4、s. The useof this report is entirely voluntary, and its applicability andsuitability for any particularuse, includingany patent infringement arisingtherefrom,is the sole responsibility of theuser.” SAE reviews eachtechnical reportatleast every fiveyears at whichtime it may be revised, reaffirmed, st
5、abilized, or cancelled. SAE invites your written comments and suggestions.SAE values your input. To provide feedback on this Technical Report, please visit http:/standards.sae.org/AS4687E RATIONALE ADDED CONDUCTIVE HIGH PURITY ALUMINUM COATING FOR ALUMINUM ALLOY FITTINGS. FIGURE 1 - ELBOW ASSEMBLY,
6、90 FIGURE 2 - INSTALLATION, RETAINED NUT AND RETAINING WIRE AEROSPACE STANDARD AS4687 SHEET 2 OF 5 REV. E FITTING ASSEMBLY, ELBOW, 90, FLARELESS AND SHORT FLARELESS, REDUCER, RETAINED NUT TABLE 1 - DIMENSIONS AND WEIGHTS BASIC NO. AS4687 /10/ /19/ SIZE CODE D H J +.005/-.020 LB/EA APPROX REF ALUM LB
7、/EA APPROX REF CRES LB/EA APPROX REF TI 20 .517 .124 1.375 .332 .964 .560 24 .614 .156 1.688 .502 1.430 .828 TABLE 2 - WIRE INSERTION DEPTH PORT SIZE (NOMINAL TUBE SIZE) C 04 .250 .076 05 .312 .076 06 .375 .084 08 .500 .095 10 .625 .114 12 .750 .150 16 1.000 .176 20 1.250 .247 24 1.500 .287 TABLE 3
8、- LEG LENGTH A SIZE OF PORT #2 FORGING SIZE /10/ 20 FORGING SIZE /10/ 24 04 1.424 1.549 05 1.424 1.549 06 1.440 1.565 08 1.533 1.658 10 1.596 1.721 12 1.659 1.784 16 1.659 1.784 20 1.678 1.577 24 - 1.803 TABLE 4 - LEG LENGTH B SIZE OF PORT #1 FORGING SIZE /10/ 20 FORGING SIZE /10/ 24 04 1.401 1.526
9、05 1.453 1.578 06 1.514 1.639 08 1.611 1.736 10 1.690 1.815 12 1.679 1.804 16 1.727 1.852 20 1.603 1.728 24 - 1.756 AEROSPACE STANDARD AS4687 SHEET 3 OF 5 REV. E FITTING ASSEMBLY, ELBOW, 90, FLARELESS AND SHORT FLARELESS, REDUCER, RETAINED NUT TABLE 5 - TUBE SIZE AND CORRESPONDING THREADS PORT SIZE
10、(NOMINAL TUBE SIZE) T THREAD PER AS8879 CLASS 3B 04 .250 .4375-20UNJF 05 .312 .5000-20UNJF 06 .375 .5625-18UNJF 08 .500 .7500-16UNJF 10 .625 .8750-14UNJF 12 .750 1.0625-12UNJ 16 1.000 1.3125-12UNJ 20 1.250 1.5625-12UNJ 24 1.500 1.8125-12UNJ NOTES NOTICE THIS DOCUMENT REFERENCES A PART WHICH CONTAINS
11、 CADMIUM AS A PLATING MATERIAL. CONSULT LOCAL OFFICIALS IF YOU HAVE QUESTIONS CONCERNING CADMIUMS USE. /1/ MATERIAL: a. CODE LETTER T: (1) BODY: TYPE 6Al-4V TITANIUM ALLOY PER AMS4928 (2) NUT: CODE LETTER T OF AS4702 OR AS1790 REFERENCE (TYPE 6Al-4V TITANIUM ALLOY) (3) WIRE: PER AS4701 OR AS1791 REF
12、ERENCE (CLASS 302 OR 305 CORROSION RESISTANT STEEL) b. CODE LETTER V: (1) BODY: TYPE 15-5PH CORROSION RESISTANT STEEL PER AMS5659 (2) NUT: CODE LETTER V OF AS4702 OR AS1790 REFERENCE (TYPE 15-5PH CORROSION RESISTANT STEEL) (3) WIRE: PER AS4701 OR AS1791 REFERENCE (CLASS 302 OR 305 CORROSION RESISTAN
13、T 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: CODE LETTER W OF AS4702 OR AS1790 REFERENCE (TYPE 7075-T7351 ALUMINUM ALLOY) (3) WIRE: PER AS4701 OR AS1791 REFERENCE (CLASS 302 OR 305 CORROSION RESISTANT
14、 STEEL) 2. HEAT TREAT: a. MATERIAL CODE LETTER T: (1) BODY, NUT, AND 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 OR AS1790 REFERENCE (HEAT TREAT TO CONDITION H-1075) (3) WIRE: NONE c. MATERIAL CODE LETTER W: (
15、1) BODY, NUT, AND WIRE: NONE AEROSPACE STANDARD AS4687 SHEET 4 OF 5 REV. E FITTING ASSEMBLY, ELBOW, 90, FLARELESS AND SHORT FLARELESS, REDUCER, RETAINED NUT /3/ FINISH: a. MATERIAL CODE LETTER T: (1) BODY: FLUORIDE PHOSPHATE CONVERSION COAT PER AMS2486 (2) NUT: CODE LETTER T OF AS4702 OR AS1790 REFE
16、RENCE (FLUORIDE PHOSPHATE CONVERSION COAT AND COAT WITH SOLID FILM LUBRICANT ON ID) (3) WIRE: PER AS4701 OR AS1791 REFERENCE (PASSIVATE AND COAT WITH SOLID FILM LUBRICANT) b. MATERIAL CODE LETTER V: (1) BODY: (a) V CODE PARTS TO BE PASSIVATED ONLY WILL HAVE NO FINISH CODE LETTER AFTER THE PART NUMBE
17、R. THE FINISH WILL BE: PASSIVATE PER AMS2700 PER PROCUREMENT SPECIFICATION. (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, CLASS 2. (2) NUT: CODE LETTER V OF AS4702 O
18、R AS1790 REFERENCE (TYPE 15-5PH CORROSION RESISTANT STEEL) (a) NO FINISH CODE LETTER AT END OF PART NUMBER: PASSIVATE AND COAT WITH SOLID FILM LUBRICANT ON ID (b) FINISH CODE LETTER P AT END OF PART NUMBER: CADMIUM PLATE (3) WIRE: PER AS4701 OR AS1791 REFERENCE (PASSIVATE AND COAT WITH SOLID FILM LU
19、BRICANT) c. MATERIAL CODE 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 OF THE BODY WILL BE ANODIZE PER AMS2472 DYED BROWN, SIMILAR TO COLOR 10080 OF AMS-STD-595. (b) W CODE PARTS TO BE COATED WITH HIGH PUR
20、ITY 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 OR AS1790 REFERENCE (ANODIZE DYED BROWN AND COAT WITH SOLID FILM LUBRICANT) (3) WIRE: PER AS4701 OR AS1791 REFERENCE (PASSIV
21、ATE AND COAT WITH SOLID FILM 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 PRI-QPL-AS18280
22、FOR THIS STANDARD. SEE www.eAuditN FOR CURRENT QPL ONLINE. NOTE: PRI-QPL LIMITATION - WITH REVISION D 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 SO
23、URCE APPROVAL BY STANDARD PAGE SUPPLEMENT OR SIMILAR MEANS. /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 MATERIAL CODE LETTER. 6. INTENDED USE: THIS PART IS DESIGNED FOR USE IN TUBING
24、 CONNECTION SYSTEMS WITH NOMINAL 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 LARGEST PORT DETERMINES PRESSURE RATING. 7. WHEN MACHINED FROM BAR OR OVERSIZED FORGINGS, THE CENTER BODY SE
25、CTION SHALL CONFORM TO AS1376, TABLE 10. /8/ RADIUS APPLICABLE FOR TITANIUM PARTS ONLY. AEROSPACE STANDARD AS4687 SHEET 5 OF 5 REV. E FITTING ASSEMBLY, ELBOW, 90, FLARELESS AND SHORT FLARELESS, REDUCER, RETAINED NUT /9/ RETAINED NUT AND RETAINING WIRE: a. TUBE SIZES 1.250 AND 1.500: AS4702 RETAINED
26、NUT AND AS4701 RETAINING WIRE b. TUBE SIZES 1.000 AND SMALLER: AS1790 RETAINED NUT AND AS1791 RETAINING WIRE ASSEMBLE RETAINED NUT TO FITTING BODY WITH RETAINING WIRE AS SHOWN IN FIGURE 2. THE NUT SHALL BE FREE TO ROTATE AFTER ASSEMBLY. /10/ LARGEST PORT DETERMINES FORGING SIZE REGARDLESS OF THE LOC
27、ATION. MINIMUM FORGING SIZE IS -20. THIS STANDARD IS FOR REDUCERS ONLY; FOR ALL PORTS THE SAME SIZE USE AS4670. /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 FO
28、R MATERIAL 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 (I) LOCATED IN THE LEFT MARGIN IS FOR THE CONVENIENCE OF THE USER IN LOCATING AREAS WHERE TECHNI
29、CAL REVISIONS, 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
30、CONTAIN EDITORIAL CHANGES ONLY. 13. INVENTORIED PARTS CONFORMING TO THE PREVIOUS “LETTER CHANGE” MAY BE USED TO DEPLETION /4/. 14. INTERPRETATION OF DRAWING PER AS4296. 15. SURFACE TEXTURE: SYMBOLS PER ASME Y14.36M. REQUIREMENTS PER ASME B46.1. UNLESS OTHERWISE SPECIFIED, MACHINED SURFACES TO BE 125
31、 MICROINCHES Ra. FORGE SURFACES MAY BE 250 Ra. 16. BREAK EDGES .003 TO .015 UNLESS OTHERWISE SPECIFIED. 17. DIMENSIONING AND TOLERANCING: ASME Y14.5M-1994. 18. DIMENSIONS IN INCHES. UNLESS OTHERWISE SPECIFIED, TOLERANCES: LINEAR DIMENSIONS .010, ANGULAR DIMENSIONS 5 DEGREES. /19/ EXAMPLE OF PART NUMBER: A S 4 6 8 7 V 16 20 P / 1 0 /B A S I C P A R T N U M B E R FI N I S H C OD E L E TTE R / 3 / / 1 1 /M A TE R I A L C OD E L E TTE R / 1 / S I ZE C OD E , TU B E S I ZE OFP OR T # 2 I N . 0 6 2 I N C R E M E N TSS I ZE C OD E , TU B E S I ZE OFP OR T # 1 I N . 0 6 2 I N C R E M E N TS
