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1、SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefr
2、om, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. SHEET 1 OF 6 AS4683 REV. B THIRD ANGLE PROJECTION AEROSPACE STANDARD AS4683 REV. B IS
3、SUED 1992-07 REVISED 2003-03 REAFFIRMED 2007-07 (R) FITTING, ELBOW, 45, REDUCER, BULKHEAD, FLARELESS AND SHORT FLARELESS CUSTODIAN: SAE G-3/G-3BPROCUREMENT SPECIFICATION: /4/ AS18280 FEDERAL SUPPLY CLASS 4730 FIGURE 1 - FITTING, ELBOW, 45, REDUCER FIGURE 2A - FITTING, ELBOW, 45, SIZE 16 BULKHEAD RED
4、UCER TO SIZE 20 SHORT END RATIONALE THIS DOCUMENT HAS BEEN REAFFIRMED TO COMPLY WITH THE SAE 5-YEAR REVIEW POLICY. Copyright 2007 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
5、, mechanical, 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: 724-776-4970 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org Copyright SAE Inte
6、rnational Provided by IHS under license with SAELicensee=Defense Supply Ctr/5913977001 Not for Resale, 12/04/2007 19:28:44 MSTNo reproduction or networking permitted without license from IHS -,-,- FITTING, ELBOW, 45, REDUCER, BULKHEAD, FLARELESS AND SHORT FLARELESS AEROSPACE STANDARD AS4683 SHEET 2
7、OF 6 AS4683 REV. B REV. B (R) FIGURE 2B - FITTING, ELBOW, 45, SIZE 20 BULKHEAD REDUCER TO SIZE 24 SHORT END FIGURE 2C - FITTING, ELBOW, 45, SIZE 12 AND SMALLER BULKHEAD REDUCER TO SIZE 20 SHORT END Copyright SAE International Provided by IHS under license with SAELicensee=Defense Supply Ctr/59139770
8、01 Not for Resale, 12/04/2007 19:28:44 MSTNo reproduction or networking permitted without license from IHS -,-,- FITTING, ELBOW, 45, REDUCER, BULKHEAD, FLARELESS AND SHORT FLARELESS AEROSPACE STANDARD AS4683 SHEET 3 OF 6 AS4683 REV. B REV. B (R) FIGURE 2D - FITTING, ELBOW, 45, SIZE 16 BULKHEAD REDUC
9、ER TO SIZE 24 SHORT END TABLE 1 - DIMENSIONS AND WEIGHTS /10/ TABLE 2 - LEG LENGTH A /11/ Copyright SAE International Provided by IHS under license with SAELicensee=Defense Supply Ctr/5913977001 Not for Resale, 12/04/2007 19:28:44 MSTNo reproduction or networking permitted without license from IHS -
10、,-,- FITTING, ELBOW, 45, REDUCER, BULKHEAD, FLARELESS AND SHORT FLARELESS AEROSPACE STANDARD AS4683 SHEET 4 OF 6 AS4683 REV. B REV. B (R) TABLE 3 - LEG LENGTH B /11/ TABLE 4 - TUBE SIZE AND CORRESPONDING THREADS NOTES: /1/MATERIAL: a.CODE LETTER T - TYPE 6AL-4V TITANIUM ALLOY FORGING OR BAR PER AMS
11、4928. b.CODE LETTER V - TYPE 15-5PH CORROSION RESISTANT STEEL FORGING OR BAR PER AMS 5659. c.CODE LETTER W - TYPE 7075-T73 ALUMINUM ALLOY FORGING PER AMS 4141 OR TYPE 7075-T7351 ALUMINUM ALLOY BAR PER AMS 4124 OR 7075-T73 ALUMINUM ALLOY BAR PER AMS-QQ-A-225/9. 2.HEAT TREATMENT: a.MATERIAL CODE LETTE
12、R T - NONE. b.MATERIAL CODE LETTER V - HEAT TREAT TO CONDITION H-1075 PER AMS 2759/3. c.MATERIAL CODE LETTER W - ELECTRICAL CONDUCTIVITY AND HARDNESS PER PROCUREMENT SPECIFICATION. Copyright SAE International Provided by IHS under license with SAELicensee=Defense Supply Ctr/5913977001 Not for Resale
13、, 12/04/2007 19:28:44 MSTNo reproduction or networking permitted without license from IHS -,-,- FITTING, ELBOW, 45, REDUCER, BULKHEAD, FLARELESS AND SHORT FLARELESS AEROSPACE STANDARD AS4683 SHEET 5 OF 6 AS4683 REV. B REV. B (R) NOTES (Continued): /3/FINISH: a.MATERIAL CODE LETTER T - FLUORIDE PHOSP
14、HATE CONVERSION COAT PER AMS 2486 OR ANODIZE PER AMS 2488 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 AREA. b.MATERIAL CODE LETTER V - 1.V CODE PARTS TO
15、BE PASSIVATED ONLY WILL HAVE NO FINISH CODE LETTER AFTER THE SIZE CODE IN THE PART NUMBER. THE FINISH WILL BE: PASSIVATE PER AMS-QQ-P-35, TYPE II OR VIII. 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
16、 PLATE PER QQ-P-416, TYPE II, CLASS 2. c.MATERIAL CODE LETTER W - ANODIZE PER AMS 2472 OR PER MIL-A-8625, TYPE II, CLASS 2 DYED BROWN SIMILAR TO COLOR 10080 OF FED-STD-595. /4/PROCUREMENT SPECIFICATION: AS18280 EXCEPT AS SPECIFIED ON THIS STANDARD. THIS PRODUCT SHALL BE QUALIFIED IN ACCORDANCE WITH
17、SPECIFICATION AS18280. USERS OF THIS STANDARD SHALL PROCURE THE PRODUCT FROM ACCREDITED MANUFACTURERS OR ACCREDITED DISTRIBUTORS, AS LISTED IN THE PERFORMANCE REVIEW INSTITUTE (PRI) QUALIFIED PRODUCTS LIST PRI-QPL-AS18280 FOR THIS STANDARD. SEE http:/www.pri.sae.org/QPL/as18280.pdf FOR CURRENT QPL O
18、N-LINE. NOTE THAT MANUFACTURERS ARE ACCREDITED BY PART NUMBER, SIZE AND MATERIALS ON PRI-QPL-AS18280. /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.THIS PART IS DESIGNE
19、D 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 FORGINGS, TH
20、E 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 ONLY; FOR ALL PORTS THE SAME SIZE USE AS4666. /10/WEIGHTS ARE FOR NON
21、-REDUCERS ONLY. REDUCER FITTINGS WILL HAVE LOWER WEIGHTS. /11/REDUCER FITTINGS WHICH FALL IN THE AREA OF HATCH LINES OF 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.THE CHANGE BAR ( l ) LO
22、CATED 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 INDICATES A COMPLETE REVISION OF THE DOCUMENT. 13.INVENTORIED PARTS C
23、ONFORMING TO THE PREVIOUS ISSUE MAY BE USED TO DEPLETION. 14.INTERPRETATION OF DRAWING PER ARP4296. 15.SURFACE TEXTURE: SYMBOLS PER ASME Y14.36M; REQUIREMENTS PER ASME B46.1. UNLESS OTHERWISE SPECIFIED, MACHINED SURFACES TO BE 125 in Ra. FORGED SURFACES MAY BE 250 in Ra. 16.BREAK EDGES .003 TO .015
24、UNLESS OTHERWISE SPECIFIED. 17.DIMENSIONING AND TOLERANCING: ASME Y14.5M-1994. 18.DIMENSIONS IN INCHES. UNLESS OTHERWISE SPECIFIED, TOLERANCES: LINEAR DIMENSIONS .010, ANGULAR DIMENSIONS 030. Copyright SAE International Provided by IHS under license with SAELicensee=Defense Supply Ctr/5913977001 Not
25、 for Resale, 12/04/2007 19:28:44 MSTNo reproduction or networking permitted without license from IHS -,-,- FITTING, ELBOW, 45, REDUCER, BULKHEAD, FLARELESS AND SHORT FLARELESS AEROSPACE STANDARD AS4683 SHEET 6 OF 6 AS4683 REV. B REV. B (R) NOTES (Continued): /19/EXAMPLE OF PART NUMBER: Copyright SAE International Provided by IHS under license with SAELicensee=Defense Supply Ctr/5913977001 Not for Resale, 12/04/2007 19:28:44 MSTNo reproduction or networking permitted without license from IHS -,-,-