1、AEROSPACE STANDARD FITTING ASSEMBLY, ELBOW 90, REDUCER AND NONREDUCER, INTERNAL FLARE AS4408Copyright 2013 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, photocopy
2、ing, 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 ISSUED 1995-03REVISED 2013-11THIRD ANG
3、LE PROJECTION CUSTODIAN: G-3/G-3B REV.BFEDERAL SUPPLY CLASS 4730 AS4408SHEET 1 OF 5REV. BPROCUREMENT SPECIFICATION: /4/ AS4841SAE Technical Standards Board Rules provide that: “This report ispublishedby SAE toadvance thestate of technicalandengineering sciences. Theuse ofthis report is entirely volu
4、ntary, andits applicability and suitability forany particular use,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 invites yourwri
5、ttencomments andsuggestions. SAE values your input. To provide feedbackon this Technical Report, please visit http:/www.sae.org/technical/standards/AS4408BRATIONALE AS4408B CORRECTS TYPOGRAPHICAL ERROR OF PORT 2 LEG LENGTH LETTER DESIGNATION IN AS4408A. PORT 2FITTING ENDPER AS1708STYLE BPORT 1FITTIN
6、G ENDPER AS1708STYLE B2X RETAINING WIREPER AS1791LOCATION OFIDENTIFICATION /5/2X RETAINED NUTPER AS4370XVACROSSWRENCH PADSC2X (T)W MIN WALLTHICKNESS OFCENTER BODYSECTION900 230 FORSIZE 03 AND SMALLER 130 FOR SIZE 04AND LARGERAAFIGURE 1 - FITTING ASSEMBLY, ELBOW 90 WIRE SHALL BEINSTALLED TODIMENSION
7、D /10/D MINAASECTION A - AFIGURE 2 - INSTALLATION, RETAINED NUT AND RETAINING WIRE INACTIVE IN PART /18/ AEROSPACE STANDARD AS4408SHEET 2 OF 5REV. BFITTING ASSEMBLY, ELBOW 90, REDUCER AND NONREDUCER, INTERNAL FLARE TABLE 1 - DIMENSIONS AND WEIGHTS BASIC NO. AS4408/17/SIZE CODE (NOMINAL TUBE SIZE)T T
8、HREAD PERAS8879 C D V W LB/EAAPPROXREF ALUMLB/EAAPPROXREF CRESLB/EAAPPROXREF TI02 .125 .3125-24 UNJF .058- .065 .045 .297- .314 .090 .023 .068 .039 03 .188 .3750-24 UNJF .121- .128 .045 .360- .377 .100 .031 .088 .051 04 .250 .4375-20 UNJF .168- .175 .045 .423- .440 .110 .034 .099 .057 05 .312 .5000-
9、20 UNJF .230- .237 .045 .485- .502 .120 .044 .129 .074 06 .375 .5625-18 UNJF .293- .301 .045 .547- .565 .120 .058 .167 .096 08 .500 .7500-16 UNJF .387- .395 .055 .735- .753 .150 .103 .300 .172 10 .625 .8750-14 UNJF .480- .488 .063 .860- .878 .170 .156 .451 .259 12 .750 1.0625-12 UNJ .604- .614 .095
10、1.047-1.065 .185 .253 .732 .419 16 1.000 1.3125-12 UNJ .839- .851 .125 1.292-1.317 .205 .388 1.126 .645 20 1.250 1.6250-12 UNJ 1.073-1.086 .155 1.605-1.630 .240 .812 2.355 1.349 24 1.500 1.8750-12 UNJ 1.307-1.320 .180 1.855-1.880 .250 1.055 3.060 1.753 32 2.000 2.5000-12 UNJ 1.776-1.791 .180 2.542-2
11、.572 .350 1.940 5.630 3.225 TABLE 2 - LEG LENGTH A PORT SIZEFORG. SIZE/8/02FORG. SIZE/8/03FORG. SIZE/8/04FORG.SIZE/8/05FORG.SIZE/8/06FORG.SIZE/8/08FORG.SIZE/8/10FORG.SIZE/8/12FORG. SIZE/8/16FORG. SIZE/8/20FORG.SIZE/8/24FORG.SIZE/8/3202 .658 .686 .743 .767 .884 .924 1.100 1.157 1.268 1.521 1.521 2.03
12、1 03 - .672 .555 .587 .649 .743 .838 .931 1.056 1.213 1.338 2.015 04 - - .602 .633 .695 .789 .883 .976 1.101 1.258 1.383 1.890 05 - - - .675 .737 .831 .925 1.018 1.143 1.300 1.425 1.937 06 - - - - .821 .915 1.009 1.102 1.227 1.384 1.509 1.968 08 - - - - - 1.023 1.117 1.210 1.334 1.491 1.616 2.130 10
13、 - - - - - - 1.167 1.260 1.383 1.540 1.665 2.098 12 - - - - - - - 1.224 1.348 1.505 1.630 2.09816 - - - - - - - - 1.387 1.524 1.649 2.150 20 - - - - - - - - - 1.571 1.696 2.243 24 - - - - - - - - - - 1.776 2.28632 - - - - - - - - - - - 2.442 AEROSPACE STANDARD AS4408SHEET 3 OF 5REV. BFITTING ASSEMBL
14、Y, ELBOW 90, REDUCER AND NONREDUCER, INTERNAL FLARE 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/ MATERIAL: a. DASH AS CODE LETTER: (1) BODY: TYPE 4130 STEEL FORGING OR BAR PER AM
15、S6370 OR AMS-S-6758. (2) NUT: DASH AS CODE LETTER OF AS4370 (TYPE 4130 STEEL). (3) WIRE: PER AS1791 (CLASS 302 OR 305 CORROSION RESISTANT STEEL). b. CODE LETTER D /18/: (1) BODY: TYPE 2014-T6 ALUMINUM ALLOY FORGING PER AMS4133; OR TYPE 2024-T6 ALUMINUM ALLOY BAR PER AMS-QQ-A-225/6; OR TYPE 2024-T851
16、 ALUMINUM ALLOY BAR PER AMS-QQ-A-225/6 OR AMS4339. (2) NUT: CODE LETTER D OF AS4370 (TYPE 2024 ALUMINUM ALLOY). (3) WIRE: PER AS1791 (CLASS 302 OR 305 CORROSION RESISTANT STEEL). c. CODE LETTER J: (1) BODY: TYPE 304 CORROSION RESISTANT STEEL FORGING OR BAR PER AMS5639 OR AMS-QQ-S-763. (2) NUT: CODE
17、LETTER J OF AS4370 (TYPE 304 CORROSION RESISTANT STEEL). (3) WIRE: PER AS1791 (CLASS 302 OR 305 CORROSION RESISTANT STEEL). d. CODE LETTER K: (1) BODY: TYPE 316 CORROSION RESISTANT STEEL FORGING OR BAR PER AMS5648 OR AMS-QQ-S-763. (2) NUT: CODE LETTER K OF AS4370 (TYPE 316 CORROSION RESISTANT STEEL)
18、. (3) WIRE: PER AS1791 (CLASS 302 OR 305 CORROSION RESISTANT STEEL). e. CODE LETTER S: (1) BODY: TYPE 347 CORROSION RESISTANT STEEL FORGING OR BAR PER AMS5646 OR AMS-QQ-S-763. (2) NUT: CODE LETTER S OF AS4370 (TYPE 347 CORROSION RESISTANT STEEL). (3) WIRE: PER AS1791 (CLASS 302 OR 305 CORROSION RESI
19、STANT STEEL). f. CODE LETTER T: (1) BODY: TYPE 6AL-4V TITANIUM ALLOY FORGING OR BAR PER AMS4928. (2) NUT: CODE LETTER T OF AS4370 (TYPE 6AL-4V TITANIUM ALLOY). (3) WIRE: PER AS1791 (CLASS 302 OR 305 CORROSION RESISTANT STEEL). g. CODE LETTER W: (1) BODY: TYPE 7075-T73 ALUMINUM ALLOY FORGING PER AMS4
20、141; OR TYPE 7075-T7351 ALUMINUM ALLOY BAR PER AMS4124; OR TYPE 7075-T73 ALUMINUM ALLOY BAR PER AMS-QQ-A-225/9. (2) NUT: CODE LETTER W OF AS4370 (TYPE 7075 ALUMINUM ALLOY). (3) WIRE: PER AS1791 (CLASS 302 OR 305 CORROSION RESISTANT STEEL). 2. HEAT TREATMENT PER PROCUREMENT SPECIFICATION. AEROSPACE S
21、TANDARD AS4408SHEET 4 OF 5REV. BFITTING ASSEMBLY, ELBOW 90, REDUCER AND NONREDUCER, INTERNAL FLARE 3. FINISH: a. DASH AS MATERIAL CODE LETTER: (1) BODY: CADMIUM PLATE PER AMS-QQ-P-416, TYPE II, CLASS 2, DYE BLACK. (2) NUT: DASH AS MATERIAL CODE LETTER OF AS4370 (CADMIUM PLATE, DYED BLACK). (3) WIRE:
22、 PER AS1791 (PASSIVATE AND COAT WITH DRY FILM LUBRICANT). b. MATERIAL CODE LETTER D: (1) BODY: ANODIZE PER AMS2472 OR MIL-A-8625, TYPE II, CLASS 2, DYE BLUE, DUPLEX SEAL. (2) NUT: MATERIAL CODE LETTER D OF AS4370 (ANODIC COATING, DYE BLUE). (3) WIRE: PER AS1791 (PASSIVATE AND COAT WITH DRY FILM LUBR
23、ICANT). c. MATERIAL CODE LETTER J: (1) BODY: PASSIVATE PER AMS2700, TYPE 6 OR TYPE 7. (2) NUT: MATERIAL CODE LETTER J OF AS4370 (PASSIVATED). (3) WIRE: PER AS1791 (PASSIVATE AND COAT WITH DRY FILM LUBRICANT). d. MATERIAL CODE LETTER K: (1) BODY: PASSIVATE PER AMS2700, TYPE 6 OR TYPE 7. (2) NUT: MATE
24、RIAL CODE LETTER K OF AS4370 (PASSIVATED). (3) WIRE: PER AS1791 (PASSIVATE AND COAT WITH DRY FILM LUBRICANT). e. MATERIAL CODE LETTER S: (1) BODY: PASSIVATE PER AMS2700, TYPE 6 OR TYPE 7. (2) NUT: MATERIAL CODE LETTER S OF AS4370 (PASSIVATED). (3) WIRE: PER AS1791 (PASSIVATE AND COAT WITH DRY FILM L
25、UBRICANT). f. MATERIAL CODE LETTER T: (1) BODY: ANODIZE PER AMS2488 TYPE 2 OR FLUORIDE PHOSPHATE CONVERSION COAT PER AMS2486. (2) NUT: MATERIAL CODE LETTER T OF AS4370 (FLUORIDE PHOSPHATE CONVERSION COAT). (3) WIRE: PER AS1791 (PASSIVATE AND COAT WITH DRY FILM LUBRICANT). g. MATERIAL CODE LETTER W:
26、(1) BODY: ANODIZE PER AMS2472 OR MIL-A-8625, TYPE II, CLASS 2 DYED BROWN, DUPLEX SEAL. (2) NUT: MATERIAL CODE LETTER W OF AS4370 (ANODIC COATING, DYE BROWN). (3) WIRE: PER AS1791 (PASSIVATE AND COAT WITH DRY FILM LUBRICANT). h. SUFFIX CODE LETTER U: (1) BODY: HIGH PURITY ALUMINUM COAT PER PROCUREMEN
27、T SPECIFICATION. i. SUFFIX CODE LETTER N: (1) NUT: SUFFIX CODE LETTER N OF AS4370 (COAT WITH DRY FILM LUBRICANT). /4/ PROCUREMENT SPECIFICATION: AS4841 EXCEPT AS SPECIFIED ON THIS STANDARD. PRODUCT SUPPLIED TO THIS SPECIFICATION SHALL BE MANUFACTURED BY AN ACCREDITED MANUFACTURER LISTED IN THE NATIO
28、NAL AEROSPACE AND DEFENSE CONTRACTORS ACCREDITATION PROGRAM (NADCAP) QUALIFIED MANUFACTURER LIST (QML) FOR THIS PRODUCT TYPE. THE QML IS AVAILABLE AT www.eAuditN.AEROSPACE STANDARD AS4408SHEET 5 OF 5REV. BFITTING ASSEMBLY, ELBOW 90, REDUCER AND NONREDUCER, INTERNAL FLARE /5/ IDENTIFICATION AT LOCATI
29、ON SHOWN: MARK PER AS478 CLASS C OR D, OR METHOD 7A3, 15A3 OR 15B. a. FOR SIZES 06 (.375 OD TUBE SIZE) AND SMALLER: MANUFACTURERS NAME, CAGE CODE OR TRADEMARK, LETTERS “AS,“ AND MATERIAL CODE LETTER. b. FOR SIZES 08 (.500 OD TUBE SIZE) AND LARGER: MANUFACTURERS NAME, CAGE CODE OR TRADEMARK, BASIC PA
30、RT NUMBER, AND MATERIAL CODE LETTER. 6. THIS PART IS DESIGNED FOR USE AS SPECIFIED IN THE PROCUREMENT SPECIFICATION FOR REDUCER CONFIGURATION. PRESSURE RATING IS DETERMINED BY THE LARGEST PORT. 7. WHEN MACHINING FROM BAR STOCK OR OVERSIZED FORGING, THE CENTER BODY DIMENSIONS SHALL CONFORM TO AS1376,
31、 TABLE 1. /8/ FORGING SIZE IS DETERMINED BY LARGEST PORT SIZE. 9. 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
32、 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 EDITORIAL CHANGES ONLY. /10/ ASSEMBLE AS4370 RETAINED NUT TO FITTING BODY WITH AS1791 RETAINING WIRE AS SHOWN IN FIGU
33、RE 2. THE RETAINED NUT SHALL BE FREE TO ROTATE AFTER ASSEMBLY. /11/ SAFETY WIRE HOLES PER SUFFIX CODE LETTER L OF AS4370. 12. INTERPRETATION OF DRAWING PER ARP4296. 13. SURFACE TEXTURE: SYMBOLS PER ASME Y14.36M. REQUIREMENTS PER ASME B46.1. UNLESS OTHERWISE SPECIFIED, MACHINED SURFACES TO BE 125 MIC
34、ROINCHES Ra. 14. BREAK EDGES .003 TO .015 UNLESS OTHERWISE SPECIFIED. 15. DIMENSIONING AND TOLERANCING: ANSI Y14.5M-1982. 16. DIMENSIONS IN INCHES. UNLESS OTHERWISE SPECIFIED, TOLERANCES: LINEAR DIMENSIONS .016, ANGULAR DIMENSIONS 0 DEGREES 30 MINUTES. /17/ EXAMPLE OF PART NUMBER: BASIC PART NUMBER
35、MATERIAL CODE LETTER /1/ SIZE CODE, TUBE SIZE OF PORT #2 IN .062 INCREMENTS SAFETY WIRE HOLES IN SWIVEL NUT /11/ AS4408 W 08 06 U LSIZE CODE, TUBE SIZE OF PORT #1 IN .062 INCREMENTS (LARGEST PORT, LARGER OR EQUAL TO PORT #2 OPTIONAL CODE LETTER (HIGH PURITY ALUMINUM COATED, ALUMINUM ONLY) /3/ /18/ INACTIVE MATERIAL CODE: PART NUMBERS WITH D MATERIAL CODE ARE INACTIVE FOR NEW DESIGN AS OF 2011/05. USE PART NUMBERS WITH W MATERIAL CODE LETTER FOR NEW DESIGN.
