1、 AEROSPACE STANDARD FITTING, ELBOW, 90, REDUCER FLARELESS AND SHORT FLARELESS AS4685Copyright 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, rec
2、ording, 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 ISSUED1992-07REAFFIRMED 2004-07REVISED2017-09T
3、HIRD ANGLE PROJECTION CUSTODIAN: G-3/G-3B REV.C FEDERAL SUPPLY CLASS 4730 AS4685 SHEET 1 OF 4 REV. C PROCUREMENT SPECIFICATION: AS18280 /4/ SAE Technical Standards Board Rules provide that: “This report is published by SAEtoadvance thestate of technicaland engineering sciences. The useof this report
4、 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, stabilized, or cancelled.
5、SAE invites your written comments and suggestions.SAE values your input. To provide feedback on this Technical Report, please visit http:/standards.sae.org/AS4685C RATIONALE ADDED CONDUCTIVE HIGH PURITY ALUMINUM COATING FOR ALUMINUM ALLOY FITTINGS. FIGURE 1 - FITTING, ELBOW, 90, REDUCER AEROSPACE ST
6、ANDARD AS4685 SHEET 2 OF 4 REV. C FITTING, ELBOW, 90, REDUCER FLARELESS AND SHORT FLARELESS TABLE 1 - DIMENSIONS AND WEIGHTS BASIC NO. AS4685 /9/ /19/ SIZE CODE D H J +.005 -.020 LB/EA APPROX REF ALUM LB/EA APPROX REF CRES LB/EA APPROX REF TI 20 .517 .124 1.375 .277 .803 .467 24 .614 .156 1.688 .436
7、 1.261 .730 TABLE 2 - LEG LENGTH A SIZE OF PORT FORGING SIZE /9/ 20 FORGING SIZE /9/ 24 02 1.585 1.710 03 1.632 1.757 04 1.663 1.788 05 1.663 1.788 06 1.679 1.804 08 1.772 1.879 10 1.835 1.960 12 1.898 2.023 14 1.898 2.023 16 1.898 2.023 20 1.673 1.798 24 - 1.798 TABLE 3 - TUBE SIZE AND CORRESPONDIN
8、G THREADS TUBE SIZE (NOMINAL TUBE SIZE) T THREAD PER AS8879 CLASS 3A 02 .125 .3125-24UNJF 03 .188 .3750-24UNJF 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 14 .875 1.1875-12UNJ 16 1.000 1.3125-12UNJ 20 1.250 1.5625-12UN
9、J 24 1.500 1.8125-12UNJ AEROSPACE STANDARD AS4685 SHEET 3 OF 4 REV. C FITTING, ELBOW, 90, REDUCER FLARELESS AND 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/ MATERI
10、AL a. CODE LETTER T: TYPE 6Al-4V TITANIUM ALLOY FORGING OR BAR PER AMS4928 b. CODE LETTER V: TYPE 15-5PH CORROSION RESISTANT STEEL FORGING OR BAR PER AMS5659 c. CODE LETTER W: TYPE 7075-T73 ALUMINUM ALLOY FORGING PER AMS4141 OR TYPE 7075-T7351 ALUMINUM ALLOY BAR PER AMS4124 2. HEAT TREAT a. MATERIAL
11、 CODE LETTER T: NONE b. MATERIAL 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: FLUORIDE PHOSPHATE CONVERSION COAT PER AMS2486 b. MATERIAL CODE LETTER V (1) V CODE PARTS TO BE PASSIVATED ONLY WILL HAVE NO FINISH CODE
12、LETTER AFTER THE SIZE CODE IN THE PART NUMBER. THE FINISH WILL BE: PASSIVATE PER AMS2700 TYPE 2 OR 8. (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, CLASS 2. c. MATER
13、IAL CODE LETTER W: (1) 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. (2) W CODE PARTS TO BE COATED WITH HIGH PURITY
14、 ALUMINUM ONLY WILL HAVE THE FINISH CODE LETTER “V” AFTER THE SIZE CODE IN THE PART NUMBER. SEE PROCUREMENT SPECIFICATION FOR REQUIREMENTS. /4/ PROCUREMENT SPECIFICATION: AS18280 EXCEPT AS SPECIFIED ON THIS STANDARD. PRODUCT SUPPLIED TO THIS SPECIFICATION SHALL BE MANUFACTURED BY AN ACCREDITED MANUF
15、ACTURER AS LISTED IN THE PERFORMANCE REVIEW INSTITUTE (PRI) QUALIFIED PRODUCTS LIST (QPL) PRI-QPL-AS18280 FOR THIS STANDARD. SEE www.eAuditN FOR CURRENT QPL ONLINE. /5/ IDENTIFICATION AT LOCATION SHOWN: MARK PER AS478 CLASS C OR D OR METHOD 7A3, 15A3, OR 15B. MANUFACTURERS NAME, TRADEMARK OR CAGE CO
16、DE, BASIC PART NUMBER, AND MATERIAL CODE LETTER. 6. INTENDED USE: THIS PART IS DESIGNED FOR USE IN TUBING 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 LARGE
17、ST PORT DETERMINES PRESSURE RATING. 7. WHEN MACHINED FROM BAR OR OVERSIZED FORGINGS, THE CENTER BODY SECTION SHALL CONFORM TO AS1376, TABLE 10. /8/ RADIUS APPLICABLE FOR TITANIUM PARTS ONLY. AEROSPACE STANDARD AS4685 SHEET 4 OF 4 REV. C FITTING, ELBOW, 90, REDUCER FLARELESS AND SHORT FLARELESS /9/ P
18、ORT #1 DETERMINES FORGING SIZE. FORGING SIZE IS -20 OR 24. /10/ PORT #1 IS LARGER THAN PORT #2. /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 MATERIAL CODE
19、“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 TECHNICAL REVISIONS, N
20、OT 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 EDITORIA
21、L CHANGES ONLY. 13. INVENTORIED PARTS CONFORMING TO THE PREVIOUS “LETTER CHANGE” MAY BE USED TO DEPLETION. 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 MICROINCHES Ra. FOR
22、GE SURFACES MAY BE 250 MICROINCHES Ra. 16. BREAK EDGES .003 TO .015, UNLESS OTHERWISE SPECIFIED. 17. DIMENSIONING AND TOLERANCING: ANSI Y14.5M-1982. 18. DIMENSIONS ARE IN INCHES. UNLESS OTHERWISE SPECIFIED, TOLERANCES: LINEAR DIMENSIONS .010, ANGULAR DIMENSIONS 5. /19/ EXAMPLE OF PART NUMBER: A S 4
23、6 8 5 V 20 16 PB A S I C P A R T N U M B E R FI N I S H C O D E L E T T E R / 3 / / 1 1 /M A T E R I A L C O D E L E T T E R / 1 /S I Z E C O D E , T U B E S I Z E O FP O R T # 1 I N . 0 6 2 I N C R E M E N T S / 1 0 /S I Z E C O D E , T U B E S I Z E O FP O R T # 2 I N . 0 6 2 I N C R E M E N T S / 1 0 /
