1、AEROSPACE STANDARD FITTING, ELBOW, 90 DEGREE, STANDARD AND REDUCER, BULKHEAD, FLARELESS, PRECISION TYPE AS6048Copyright 2012 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, mec
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3、D 2012-09THIRD ANGLE PROJECTION CUSTODIAN: G-3/G-3B REV.AFEDERAL SUPPLY CLASS 4730 AS6048SHEET 1 OF 4REV. APROCUREMENT SPECIFICATION: /5/ AS18280SAE Technical Standards Board Rules provide that: “This report ispublishedby SAE toadvance thestate of technicalandengineering sciences. Theuse ofthis repo
4、rt is entirely voluntary, 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 bereaffirmed, revised, stabilized or cancelled.S
5、AEinvites yourwrittencommentsandsuggestions. SAE values your input. To provide feedbackon this Technical Report, please visit http:/www.sae.org/technical/standards/AS6048ARATIONALE THREAD SPEC CORRECTED MATERIAL CODE LETTER W HEAT TREATMENT CORRECTED MATERIAL CODE LETTER W ANODIZE CORRECTED FIGURE 1
6、 - FITTING, ELBOW, 90 DEGREE, BULKHEAD END, PORT #2 SHOWN AS REDUCER FIGURE 2 - FITTING, ELBOW, 90 DEGREE, BULKHEAD END, SHOWN AS NON-REDUCER, SAME AS FIGURE 1 EXCEPT AS SHOWN AEROSPACE STANDARD AS6048SHEET 2 OF 4REV. AFITTING, ELBOW, 90 DEGREE, STANDARD AND REDUCER, BULKHEAD, FLARELESS, PRECISION T
7、YPE TABLE 1 - DIMENSIONS AND WEIGHTS /9/ /10/ BASIC NO. AS6048/19/SIZE CODE V W LB/EAAPPROX REF ALUMLB/EAAPPROX REF STEELLB/EAAPPROX REF TI02 .297- .314 .090 .0153 .0432 .0243 03 .360- .377 .100 .0207 .0576 .0324 04 .423- .440 .110 .0225 .0639 .0360 05 .485- .502 .120 .0342 .0918 .0522 06 .547- .565
8、 .120 .0486 .111 .0630 08 .735- .753 .150 .0819 .213 .122 10 .860- .878 .170 .120 .360 .207 12 1.047-1.065 .185 .171 .504 .274 14 1.173-1.191 .200 - - - 16 1.292-1.317 .205 .279 .828 .477 20 1.605-1.630 .240 .472 1.20 .681 24 1.855-1.880 .250 .630 1.76 1.02 32 2.542-2.572 .350 - - - TABLE 2 - LEG LE
9、NGTH A /9/ /11/ FORGING SIZETUBE SIZE OF PORT #1 02 03 04 05 06 08 10 12 14 16 20 24 32 02 1.336 - - - - - - - - - - - - 03 1.367 1.414 - - - - - - - - - - - 04 1.413 1.460 1.523 - - - - - - - - - - 05 1.445 1.492 1.555 1.555 - - - - - - - - - 06 1.555 1.602 1.665 1.665 1.711 - - - - - - - - 08 1.66
10、4 1.711 1.774 1.774 1.820 1.992 - - - - - - - 10 1.804 1.851 1.914 1.914 1.960 2.132 2.273 - - - - - - 12 1.914 1.961 2.024 2.024 2.070 2.242 2.383 2.492 - - - - - 14 2.024 2.071 2.134 2.134 2.180 2.352 2.493 2.617 2.543 - - - - 16 2.039 2.086 2.149 2.149 2.195 2.367 2.508 2.617 2.617 2.617 - - -20
11、2.320 2.367 2.430 2.430 2.476 2.648 2.789 2.898 2.898 2.898 2.898 - - 24 2.602 2.649 2.712 2.712 2.758 2.930 3.071 3.180 3.180 3.180 3.180 3.180 - 32 2.992 3.039 3.102 3.102 3.148 3.320 3.461 3.570 3.570 3.570 3.570 3.570 3.773 TABLE 3 - LEG LENGTH C /9/ /11/ FORGING SIZE TUBE SIZE OF PORT #2 02 03
12、04 05 06 08 10 12 14 16 20 24 32 02 .804 - - - - - - - - - - - - 03 .883 .930 - - - - - - - - - - - 04 .883 .930 .961 - - - - - - - - - - 05 .977 1.024 1.055 1.055 - - - - - - - - - 06 .992 1.039 1.070 1.070 1.086 - - - - - - - - 08 1.149 1.196 1.227 1.227 1.243 1.336 - - - - - - - 10 1.274 1.320 1.
13、352 1.352 1.368 1.461 1.524 - - - - - - 12 1.335 1.383 1.414 1.414 1.430 1.523 1.586 1.649 - - - - - 14 1.398 1.445 1.476 1.476 1.492 1.585 1.648 1.742 1.693 - - - - 16 1.429 1.476 1.507 1.507 1.523 1.616 1.679 1.742 1.742 1.742 - - - 20 1.710 1.757 1.788 1.788 1.804 1.897 1.960 2.023 2.023 2.023 2.
14、023 - - 24 1.898 1.945 1.976 1.976 1.992 2.085 2.148 2.211 2.211 2.211 2.211 2.211 - 32 2.085 2.132 2.163 2.163 2.179 2.272 2.335 2.398 2.398 2.398 2.398 2.398 2.398 AEROSPACE STANDARD AS6048SHEET 3 OF 4REV. AFITTING, ELBOW, 90 DEGREE, STANDARD AND REDUCER, BULKHEAD, FLARELESS, PRECISION TYPE TABLE
15、4 - TUBE SIZE AND CORRESPONDING THREAD PORT SIZE(NOMINAL TUBE SIZE)T THREAD PER AS8879 02 .125 .3125-24 UNJF 03 .188 .3750-24 UNJF 04 .250 .4375-20 UNJF 05 .312 .5000-20 UNJF 06 .375 .5625-18 UNJF 08 .500 .7500-16 UNJF 10 .625 .8750-14 UNJF 12 .750 1.0625-12 UNJ 14 .875 1.1875-12 UNJ 16 1.000 1.3125
16、-12 UNJ 20 1.250 1.6250-12 UNJ24 1.500 1.8750-12 UNJ 32 2.000 2.5000-12 UNJ 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. CODE LETTER T TYPE 6AL-4V TITANIUM ALLOY PER
17、PROCUREMENT SPECIFICATION B. CODE LETTER V TYPE 15-5PH, CORROSION RESISTANT STEEL PER PROCUREMENT SPECIFICATION C. CODE LETTER W TYPE 7075-T73 ALUMINUM ALLOY BAR OR FORGING, OR TYPE 7075-T7351 ALUMINUM ALLOY BAR PER PROCUREMENT SPECIFICATION 2. HEAT TREATMENT: A. MATERIAL CODE LETTER T ANNEALED PER
18、PROCUREMENT SPECIFICATION B. MATERIAL CODE LETTER V AGE TO CONDITION H1075 PER PROCUREMENT SPECIFICATION C. MATERIAL CODE LETTER W ELECTRICAL CONDUCTIVITY AND HARDNESS PER PROCUREMENT SPECIFICATION /3/ FINISH: A. MATERIAL CODE LETTER T ANODIZE OR FLUORIDE PHOSPHATE CONVERSION COAT PER PROCUREMENT SP
19、ECIFICATION 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 PROCUREMENT SPECIFICATION. 2. V CODE PARTS TO BE CADMIUM PLATED ONLY SHALL HAVE THE FINISH CODE LETTER “P” AFTER THE
20、SIZE CODE IN THE PART NUMBER. THE FINISH WILL BE: CADMIUM PLATE PER PROCUREMENT SPECIFICATION. C. MATERIAL CODE LETTER W ANODIZE PER PROCUREMENT SPECIFICATION /4/ OXYGEN SYSTEM AND COMPONENT CLEANING, SUFFIX LETTER A /19/: A. MATERIAL CODE LETTER P CLEAN AND PACKAGE PER ARP1176 CATEGORY 1C B. MATERI
21、AL CODE LETTER W CLEAN AND PACKAGE PER ARP1176 CATEGORY 2 AEROSPACE STANDARD AS6048SHEET 4 OF 4REV. AFITTING, ELBOW, 90 DEGREE, STANDARD AND REDUCER, BULKHEAD, FLARELESS, PRECISION TYPE /5/ PROCUREMENT SPECIFICATION: AS18280 UNLESS OTHERWISE SPECIFIED ON THIS STANDARD. PRODUCT SUPPLIED TO THIS SPECI
22、FICATION SHALL BE MANUFACTURED BY AN ACCREDITED MANUFACTURER AS LISTED IN THE PERFORMANCE REVIEW INSTITUTE (PRI) QUALIFIED PRODUCTS LIST PRI-QPL-AS18280 FOR THIS STANDARD. SEE http:/www.eAuditN FOR CURRENT QPL ONLINE. 6. INTENDED USE: THIS PART IS DESIGNED FOR USE IN TUBING CONNECTION SYSTEMS WITH N
23、OMINAL OPERATING PRESSURES AS SPECIFIED IN AS18280. ADDITIONAL CRITERIA - FOR REDUCER CONFIGURATIONS THE PRESSURE RATING IS DETERMINED BY THE LARGEST PORT. 7. BREAK EDGES .003 TO .015 UNLESS OTHERWISE SPECIFIED. 8. WHEN MACHINING FROM BAR STOCK OR OVERSIZED FORGING, THE CENTER BODY DIMENSIONS SHALL
24、CONFORM TO AS1376, TABLE 2. /9/ THE DIMENSIONS IN THE TABLES 1 THROUGH 4 ARE FOR FINAL MACHINED PARTS. THE FORGING SIZE IS DETERMINED AS THE SIZE NECESSARY TO MAKE THE LARGEST FITTING END. /10/ WEIGHTS ARE FOR NON-REDUCERS ONLY. REDUCER FITTINGS WILL HAVE LOWER WEIGHTS. /11/ REDUCER FITTINGS WHICH F
25、ALL IN THE SHADED AREA 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. FITTING IDENTIFICATION SHALL BE IN ACCORDANCE WITH AS18280. 13. A CHANGE BAR (l) LOCATED IN THE LEFT MARGIN IS FOR T
26、HE 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, INCLUDING TECHNICAL REVISIONS. CHANGE BARS AND (R) ARE
27、NOT USED IN ORIGINAL PUBLICATIONS, NOR IN DOCUMENTS THAT CONTAIN EDITORIAL CHANGES ONLY. 14. INTERPRETATION OF DRAWING PER ARP4296. 15. FLUID PASSAGE, HOLE CONTOUR PER ARP4266. 16. SURFACE TEXTURE: SYMBOLS PER ASME Y14.36M. REQUIREMENTS PER ASME B46.1. UNLESS OTHERWISE SPECIFIED, MACHINED SURFACES T
28、O BE 125 MICROINCHES Ra. FORGED SURFACES MAY BE 250 MICROINCHES Ra. 17. DIMENSIONING AND TOLERANCING: ASME Y14.5M-1994. 18. DIMENSIONS IN INCHES. UNLESS OTHERWISE SPECIFIED, TOLERANCES: LINEAR DIMENSIONS .016, ANGULAR DIMENSIONS 0 DEGREES 30 MINUTES. /19/ EXAMPLES OF PART NUMBERS: AS6048 V 08 08 A B
29、ASIC PART NUMBER MATERIAL CODE LETTER /1/ SIZE CODE FOR PORT 1 IN .062 INCREMENTS SIZE CODE FOR PORT 2 IN .062 INCREMENTS CODE LETTER FOR OXYGEN CLEANING. /4/ OMIT CODE LETTER IF OXYGEN CLEANING IS NOT REQUIRED. THE FINISH CODE LETTER “P” WILL BE PLACEDHERE ONLY FOR MATERIAL CODE LETTER “V PARTS THAT ARE TO BE CADMIUM PLATED. /3/ IF THE “P” IS USED, THE “A” CODE LETTER SHALL NOT BE USED.
