1、 AEROSPACE STANDARD FITTING ASSEMBLY, ELBOW, 45, BEAM SEAL, RETAINED NUT AS4808Copyright 2015 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, recordin
2、g, 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 ISSUED 1996-05REVISED 2007-09 REAFFIRMED 2015-04THI
3、RD ANGLE PROJECTION CUSTODIAN: G-3/G-3B REV.B FEDERAL SUPPLY CLASS 4730AS4808 SHEET 1 OF 3 REV. B PROCUREMENT SPECIFICATION: /5/ AS85421, AS85720SAE Technical Standards Board Rules provide that: “This report ispublished by SAE toadvance thestate of technicalandengineering sciences. Theuse ofthisrepo
4、rt is entirelyvoluntary, andits applicability and suitability forany particularuse,including any patent infringement arising therefrom, isthe soleresponsibilityofthe user.”SAE reviews eachtechnicalreport at least every five years at which time itmay berevised,reaffirmed, stabilized, orcancelled. SAE
5、 invites yourwrittencomments andsuggestions. SAE values your input. To provide feedbackon this Technical Report, please visit http:/www.sae.org/technical/standards/AS4808B RATIONALE AS4808B HAS BEEN REAFFIRMED TO COMPLY WITH THE SAE FIVE-YEAR REVIEW POLICY. FIGURE 1 - FITTING ASSEMBLY, ELBOW, 45 TAB
6、LE 1 - DIMENSIONS AND WEIGHTS BASIC NO. AS4808 /16/ SIZE CODE (NOMINAL TUBE SIZE) T THREAD PER AS8879 CLASSES A AND B A B G MIN H V W LB/EAMAX CRESLB/EAMAX TI 03 04 05 06 08 10 12 14 16 20 24 .188 .250 .312 .375 .500 .625 .750 .875 1.000 1.250 1.500 .3750-28 UNJS .4375-24 UNJS .5000-24 UNJS .5625-20
7、 UNJS .7188-20 UNJS .8438-18 UNJS 1.0000-16 UNJ 1.1250-16 UNJ 1.2500-14 UNJS 1.5781-14 UNJS 1.8438-14 UNJS .351.420.438.471.528.619.685.753.783.8361.003.592.662.685.769.805.9011.0041.1251.1351.2931.482.285.329.391.454.547.673.8601.1101.1101.3601.610.500.562.625.688.8751.0001.1251.3751.5001.8752.125.
8、360- .377 .360- .377 .423- .440 .485- .502 .547- .565 .673- .681 .860- .878 1.110-1.128 1.110-1.128 1.355-1.380 1.605-1.630 .055 .060 .060 .060 .065 .070 .095 .105 .115 .110 .130 .0367 .0469 .0595 .0742 .110 .154 .218 .409 .408 .627 .921 .0210 .0268 .0340 .0424 .0628 .0881 .124 .234 .233 .358 .526 A
9、EROSPACE STANDARD AS4808 SHEET 2 OF 3 REV. B FITTING ASSEMBLY, ELBOW, 45, BEAM SEAL, RETAINED NUT NOTES: /1/ MATERIAL: a. CODE LETTER T (1) BODY: TYPE 6AL-4V TITANIUM ALLOY FORGING OR BAR PER AMS 4965. (2) NUT: TYPE 6AL-4V TITANIUM ALLOY BAR PER AMS 4965. b. CODE LETTER P (1) BODY: TYPE 17-4PH CORRO
10、SION RESISTANT STEEL FORGING OR BAR PER AMS 5643. (2) NUT: TYPE 17-4PH CORROSION RESISTANT STEEL BAR PER AMS 5643. c. CODE LETTER V (1) BODY: TYPE 15-5PH CORROSION RESISTANT STEEL FORGING OR BAR PER AMS 5659. (2) NUT: TYPE 15-5PH CORROSION RESISTANT STEEL BAR PER AMS 5659. 2. HEAT TREAT: a. MATERIAL
11、 CODE LETTER T (1) BODY AND NUT: NONE. b. MATERIAL CODE LETTERS P AND V (1) BODY AND NUT: HEAT TREAT TO CONDITION H 1075 PER AMS 2759/3. 3. FINISH: a. MATERIAL CODE LETTER T (1) BODY: NONE. (2) NUT: NONE. b. MATERIAL CODE LETTERS P AND V (1) BODY: PASSIVATE PER AMS 2700. (2) NUT: PASSIVATE PER AMS 2
12、700. /4/ DRY FILM LUBRICANT: APPLY DRY FILM LUBRICANT PER AS5272, TYPE I TO THE SEALING SURFACE. OVERSPRAY IN BORE IS NOT PERMITTED. APPLY DRY FILM LUBRICANT PER AS5272, TYPE I TO THE INSIDE OF THE NUT. MINOR OVERSPRAY IS PERMITTED ON THE NUT. /5/ PROCUREMENT SPECIFICATION: AS85421 FOR OPERATING PRE
13、SSURES TO 4000 psi AND AS85720 FOR OPERATING PRESSURES TO 5000 psi, EXCEPT AS SPECIFIED ON THIS STANDARD. THIS PART SHALL BE QUALIFIED TO THE PROCUREMENT SPECIFICATION AS APPLICABLE IN A COMPLETE ASSEMBLY. USERS OF THIS STANDARD ARE ADVISED TO CONTROL SOURCE APPROVAL(S) BY STANDARD PAGE SUPPLEMENT S
14、HEET OR SIMILAR MEANS. AEROSPACE STANDARD AS4808 SHEET 3 OF 3 REV. B FITTING ASSEMBLY, ELBOW, 45, BEAM SEAL, RETAINED NUT /6/ IDENTIFICATION AT LOCATION SHOWN: MARK PER AS478 CLASS C OR D OR METHOD 7A3, 15A3, OR 15B. /7/ a. FOR SIZES 06 (.375 OD TUBE SIZE) AND SMALLER: MANUFACTURERS NAME OR TRADEMAR
15、K, MATERIAL CODE LETTER AND PRESSURE RATING. (EXAMPLE: 5K = 5000 psi.) b. FOR SIZES 08 (.500 OD TUBE SIZE) AND LARGER: MANUFACTURERS NAME OR TRADEMARK, BASIC PART NUMBER, MATERIAL CODE LETTER AND PRESSURE RATING. (EXAMPLE: 5K = 5000 psi.) /7/ THIS PART IS DESIGNED FOR USE IN SYSTEMS WITH MAXIMUM OPE
16、RATING PRESSURES AS FOLLOWS: a. SIZES 03 THROUGH 16 AT 5000 psi b. SIZE 20 AT 3000 psi c. SIZE 24 AT 2000 psi 8. WHEN MACHINED FROM BAR OR OVERSIZED FORGINGS, THE CENTER BODY SECTION SHALL CONFORM TO AS1376, TABLE 4. /9/ .030 TO .125 RADIUS UNLESS QUALIFICATION OF SPECIAL PROCESS WITH SMALLER RADIUS
17、. APPLICABLE FOR TITANIUM ALLOY PARTS ONLY. /10/ RETAINED NUT: DESIGN OF RETAINED NUT IS AT MANUFACTURERS OPTION IN ACCORDANCE WITH REQUIREMENTS OF AS4209, EXCEPT AS NOTED. MATERIAL AND FINISH PER THIS STANDARD. 11. INTERPRETATION OF DRAWING PER ARP4296. 12. SURFACE TEXTURE: SYMBOLS PER ANSI Y14.36;
18、 REQUIREMENTS PER ANSI/ASME B46.1. UNLESS OTHERWISE SPECIFIED, MACHINED SURFACES TO BE 125 in Ra. FORGED SURFACES MAY BE 250 in Ra. 13. BREAK EDGES .003 TO .015 UNLESS OTHERWISE SPECIFIED. 14. DIMENSIONING AND TOLERANCING: ASME Y14.5M-1994 15. DIMENSIONS IN INCHES. UNLESS OTHERWISE SPECIFIED, TOLERA
19、NCES: LINEAR DIMENSIONS .015, ANGULAR DIMENSIONS 2. /16/ EXAMPLE OF PART NUMBER: 17. THE 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 DOCUMENT TITLE INDICATES A COMPLETE REVISION OF THE DOCUMENT.
