1、 AEROSPACE STANDARD FITTING, ELBOW, 45, REDUCER AND NON-REDUCER, BULKHEAD, FLARELESS AND SHORT FLARELESS AS4683Copyright 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, me
2、chanical, 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 ISSUED1992-07REAFFI
3、RMED 2007-07REVISED 2017-08THIRD ANGLE PROJECTION CUSTODIAN: G-3/G-3B REV.D FEDERAL SUPPLY CLASS 4730 AS4683 SHEET 1 OF 7 REV. D PROCUREMENT SPECIFICATION: AS18280 /4/ SAE Technical Standards Board Rules provide that: “This report is published by SAEtoadvance thestate of technicaland engineering sci
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5、, stabilized, 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/AS4683D RATIONALE ADDED CONDUCTIVE HIGH PURITY ALUMINUM COATING FOR ALUMINUM ALLOY FITTINGS. FIGURE 1 - FITTING, ELB
6、OW, 45, REDUCER AEROSPACE STANDARD AS4683 SHEET 2 OF 7 REV. D FITTING, ELBOW, 45, REDUCER AND NON-REDUCER, BULKHEAD, FLARELESS AND SHORT FLARELESS FIGURE 2A - FITTING, ELBOW, 45, SIZE 16 BULKHEAD REDUCER TO SIZE 20 SHORT END FIGURE 2B - FITTING, ELBOW, 45, SIZE 20 BULKHEAD REDUCER TO SIZE 24 SHORT E
7、ND AEROSPACE STANDARD AS4683 SHEET 3 OF 7 REV. D FITTING, ELBOW, 45, REDUCER AND NON-REDUCER, BULKHEAD, FLARELESS AND SHORT FLARELESS FIGURE 2C - FITTING, ELBOW, 45, SIZE 12 AND SMALLER BULKHEAD REDUCER TO SIZE 20 SHORT END FIGURE 2D - FITTING, ELBOW, 45, SIZE 16 BULKHEAD REDUCER TO SIZE 24 SHORT EN
8、D FIGURE 2 TABLE 1 - DIMENSIONS AND WEIGHTS /10/ BASIC NO. AS4683 /9/ /20/ SIZE CODE D H J +.005/-.020 LB/EA APPROX REF ALUM LB/EA APPROX REF STEEL LB/EA APPROX REF Ti 20 .517 .124 1.375 .315 .874 .500 24 .614 .156 1.688 .427 1.18 .677 AEROSPACE STANDARD AS4683 SHEET 4 OF 7 REV. D FITTING, ELBOW, 45
9、, REDUCER AND NON-REDUCER, BULKHEAD, FLARELESS AND SHORT FLARELESS TABLE 2 - LEG LENGTH A /11/ SIZE OF PORT FORGING SIZE /9/ 20 FORGING SIZE /9/ 24 02 1.852 1.867 03 1.899 1.914 04 1.962 1.977 05 1.962 2.023 06 2.008 2.195 08 2.180 2.336 10 2.321 2.445 12 2.430 2.445 14 2.430 2.445 16 2.430 2.445 20
10、 2.217 2.233 24 - 2.233 TABLE 3 - LEG LENGTH B /11/ SIZE OF PORT FORGING SIZE /9/ 20 FORGING SIZE /9/ 24 02 1.149 1.242 03 1.199 1.289 04 1.226 1.320 05 1.226 1.320 06 1.243 1.336 08 1.335 1.429 10 1.398 1.429 12 1.461 1.555 14 1.461 1.555 16 1.461 1.555 20 1.236 1.330 24 - 1.330 AEROSPACE STANDARD
11、AS4683 SHEET 5 OF 7 REV. D FITTING, ELBOW, 45, REDUCER AND NON-REDUCER, BULKHEAD, FLARELESS AND SHORT FLARELESS TABLE 4 - TUBE SIZE AND CORRESPONDING THREADS SIZE OF PORT (NOMINAL TUBE SIZE) T THREAD PER AS8879 CLASS 3A 02 .125 .3125-24UNJF 03 .188 .3750-24UNJF 04 .250 .4375-20UNJF 05 .312 .5000-20U
12、NJF 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 1.5625-12UNJ 24 1.500 1.8125-12UNJ NOTES: NOTICE THIS DOCUMENT REFERENCES A PART WHICH CONTAINS CADMIUM AS A PLATING MATERIAL. CONSULT LOCAL OFFICIALS IF YOU HA
13、VE QUESTIONS CONCERNING CADMIUMS USE. /1/ MATERIAL: 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 AL
14、UMINUM ALLOY BAR PER AMS4124 OR 7075-T73 ALUMINUM ALLOY BAR PER AMS-QQ-A-225/9. 2. HEAT TREAT: a. MATERIAL CODE LETTER T - NONE. b. MATERIAL CODE LETTER V - HEAT TREAT TO CONDITION H-1075 PER AMS2759/3. c. MATERIAL CODE LETTER W - ELECTRICAL CONDUCTIVITY AND HARDNESS PER PROCUREMENT SPECIFICATION. /
15、3/ FINISH: a. MATERIAL CODE LETTER T - FLUORIDE PHOSPHATE CONVERSION COAT PER AMS2486 OR ANODIZE PER AMS2488 TYPE 2. BARE AREAS OF FLUORIDE PHOSPHATE COATING OCCURRING ON SEALING, BEARING OR THREADED SURFACES SHALL NOT BE CAUSE FOR REJECTION. BARE AREAS SHALL NOT EXCEED 30% OF THE REMAINING SURFACE
16、AREA. b. MATERIAL CODE LETTER V (1) V CODE PARTS TO BE PASSIVATED ONLY WILL HAVE NO FINISH CODE 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
17、 THE PART NUMBER. THE FINISH WILL BE: CADMIUM PLATE PER AMS-QQ-P-416, TYPE II, CLASS 2. AEROSPACE STANDARD AS4683 SHEET 6 OF 7 REV. D FITTING, ELBOW, 45, REDUCER AND NON-REDUCER, BULKHEAD, FLARELESS AND SHORT FLARELESS c. MATERIAL CODE LETTER W (1) W CODE PARTS TO BE ANODIZED ONLY WILL HAVE NO FINIS
18、H 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 ALUMINUM ONLY WILL HAVE THE FINISH CODE LETTER “V” AFTER THE SIZE CODE IN
19、 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 MANUFACTURER AS LISTED IN THE PERFORMANCE REVIEW INSTITUTE (PRI) QUALIFIED PROD
20、UCTS 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 OR 15B. MANUFACTURERS NAME, TRADEMARK OR CAGE CODE, BASIC PART NUMBER, AND MATERIAL CODE LETTER. 6. INTENDED USE: THIS PART IS DE
21、SIGNED 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. LARGEST PORT DETERMINES PRESSURE RATING. 7. WHEN MACHINED FROM BAR OR OVERSIZED FORG
22、INGS, THE CENTER BODY SECTION SHALL CONFORM TO AS1376, TABLE 10. /8/ RADIUS APPLICABLE FOR TITANIUM PARTS ONLY. /9/ LARGEST PORT DETERMINES FORGING SIZE, REGARDLESS OF THE LOCATION. MINIMUM FORGING SIZE IS -20. THIS STANDARD IS FOR REDUCERS AND NON-REDUCERS; FOR ALL PORTS THE SAME SIZE USE AS4666. /
23、10/ WEIGHTS ARE FOR NON-REDUCERS ONLY. REDUCER FITTINGS WILL HAVE LOWER WEIGHTS. /11/ REDUCER FITTINGS THAT ARE LINED OUT IN TABLES 2 AND 3 SHOULD BE AVOIDED. IF THEY MUST BE USED, SPECIAL ATTENTION SHOULD BE GIVEN TO CLAMPING OR OTHER MEANS TO PROTECT THE SMALLER PORT OR TUBE. /12/ FINISH CODE LETT
24、ER “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 “W” PARTS THAT ARE TO BE COATED WITH HIGH PURITY ALUMINUM TO PROVIDE LOW ELECTRICAL CONTACT RESISTANCE. NO OTHER LETT
25、ERS ARE TO FOLLOW THE SIZE CODES. 13. REVISION INDICATOR: 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 DOCUMEN
26、T 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. 14. INVENTORIED PARTS CONFORMING TO THE PREVIOUS ISSUE MAY BE USED TO DEPLETION. 15. INTERPRETATION O
27、F DRAWING PER AS4296. 16. 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. 17. BREAK EDGES .003 TO .015 UNLESS OTHERWISE SPECIFIED. 18. DIMENSIONING AND TOLERANCI
28、NG: ANSI Y14.5M-1982. 19. DIMENSIONS IN INCHES. UNLESS OTHERWISE SPECIFIED, TOLERANCES: LINEAR DIMENSIONS .010, ANGULAR DIMENSIONS 0 DEGREES 30 MINUTES /20/ EXAMPLE OF PART NUMBER: AEROSPACE STANDARD AS4683 SHEET 7 OF 7 REV. D FITTING, ELBOW, 45, REDUCER AND NON-REDUCER, BULKHEAD, FLARELESS AND SHORT FLARELESS A S 4 6 8 3 V 20 16 P / 9 /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 2 /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 # 1 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 # 2 I N . 0 6 2 I N C R E M E N TS
