1、 AEROSPACE STANDARD FITTING, ELBOW, 90 DEGREE, STANDARD AND REDUCER, BULKHEAD, FLARELESS, PRECISION TYPE AS6048Copyright 2018 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
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3、D2018-01THIRD ANGLE PROJECTION CUSTODIAN: G-3/G-3B REV.B FEDERAL SUPPLY CLASS 4730 AS6048 SHEET 1 OF 4 REV. B PROCUREMENT SPECIFICATION: AS18280 /5/ SAE Technical Standards Board Rules provide that: “This report is published by SAEtoadvance thestate of technicaland engineering sciences. The useof th
4、is report is entirely voluntary, and its applicability andsuitability for any particularuse, includingany patent infringement arisingtherefrom,is thesole responsibility of theuser.” SAE reviews eachtechnical reportatleast every fiveyears at whichtime it may be revised, reaffirmed, stabilized, or can
5、celled. SAE invites your written comments and suggestions.SAE values your input. To provide feedback on this Technical Report, please visit http:/standards.sae.org/AS6048B RATIONALE ADDED CONDUCTIVE HIGH PURITY ALUMINUM COATING FOR ALUMINUM ALLOY FITTINGS. FIGURE 1 - FITTING, ELBOW, 90, BULKHEAD END
6、, PORT #2 SHOWN AS REDUCER FIGURE 2 - FITTING, ELBOW, 90, BULKHEAD END, SHOWN AS NON-REDUCER, SAME AS FIGURE 1, EXCEPT AS SHOWN AEROSPACE STANDARD AS6048 SHEET 2 OF 4 REV. B FITTING, ELBOW, 90 DEGREE, STANDARD AND REDUCER, BULKHEAD, FLARELESS, PRECISION TYPE TABLE 1 - DIMENSIONS AND WEIGHTS /9/ /10/
7、 BASIC NO. AS6048 /21/ SIZE CODE V W LB/EA APPROX REF ALUM LB/EA APPROX REF STEEL LB/EA APPROX REF TI 02 .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 .120 .0486 .111 .0630 08 .735- .753
8、.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 LENGTH A /9/ /11/ FORGING SIZE TUBE SIZ
9、E 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 1.664 1.711 1.774 1.774 1.820 1.992 - -
10、- - - - - 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 2.320 2.367 2.430 2.430 2.476 2.648
11、 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 04 05 06 08 10 12 14 16 20 24 32 02
12、 .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 1.352 1.352 1.368 1.461 1.524 - - - -
13、 - - 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 2.023 - - 24 1.898 1.945 1.976 1.976
14、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 AS6048 SHEET 3 OF 4 REV. B FITTING, ELBOW, 90 DEGREE, STANDARD AND REDUCER, BULKHEAD, FLARELESS, PRECISION TYPE TABLE 4 - TUBE SIZE AND CORRESPONDING
15、THREAD PORT SIZE (NOMINAL TUBE SIZE) T THREAD PER AS8879 CLASS 3A 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 1.3125-12 UNJ 20 1.250 1.62
16、50-12 UNJ 24 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 PROCUREMENT SPECIFIC
17、ATION 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 PROCUREMENT SPECIFICA
18、TION 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 SPECIFICATION b. MATERI
19、AL 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 SIZE CODE IN THE PA
20、RT NUMBER. THE FINISH WILL BE: CADMIUM PLATE PER PROCUREMENT SPECIFICATION. c. MATERIAL CODE LETTER W (1) W CODE PARTS TO BE ANODIZED ONLY WILL HAVE NO FINISH CODE LETTER AFTER THE SIZE CODE IN THE PART NUMBER. THE FINISH WILL BE ANODIZE PER PROCUREMENT SPECIFICATION. (2) W CODE PARTS TO BE COATED W
21、ITH HIGH PURITY ALUMINUM ONLY WILL HAVE THE FINISH CODE LETTER “V” AFTER THE SIZE CODE IN THE PART NUMBER. SEE PROCUREMENT SPECIFICATION FOR REQUIREMENTS. AEROSPACE STANDARD AS6048 SHEET 4 OF 4 REV. B FITTING, ELBOW, 90 DEGREE, STANDARD AND REDUCER, BULKHEAD, FLARELESS, PRECISION TYPE /4/ OXYGEN SYS
22、TEM AND COMPONENT CLEANING, SUFFIX LETTER A /21/: a. MATERIAL CODE LETTER P CLEAN AND PACKAGE PER ARP1176 CATEGORY 1C b. MATERIAL CODE LETTER W CLEAN AND PACKAGE PER ARP1176 CATEGORY 2 /5/ PROCUREMENT SPECIFICATION: AS18280, UNLESS OTHERWISE SPECIFIED ON THIS STANDARD. PRODUCT SUPPLIED TO THIS SPECI
23、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 www.eAuditN FOR CURRENT QPL ONLINE. 6. INTENDED USE: THIS PART IS DESIGNED FOR USE IN TUBING CONNECTION SYSTEMS WITH NOMINAL
24、 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 CONFO
25、RM TO AS1376, TABLE 1. /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 FALL I
26、N 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/ FINISH CODE LETTER P SHALL BE PLACED AFTER SIZE CODES ON
27、LY FOR MATERIAL CODE V PARTS THAT ARE TO BE CADMIUM PLATED. SUFFIX CODE LETTER A SHALL NOT BE COMBINED WITH FINISH CODE LETTER P. 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 RES
28、ISTANCE. SUFFIX CODE LETTER A MAY BE COMBINED WITH FINISH CODE LETTER V AND SHALL BE SPECIFIED AS VA. 14. REVISION INDICATOR: A CHANGE BAR (I) 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 PREVI
29、OUS 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 NOT USED IN ORIGINAL PUBLICATIONS, NOR IN DOCUMENTS THAT CONTAIN EDITORIAL CHANGES ONLY. 15. INTERPRETATION OF DRAWING PER
30、 AS4296. 16. FLUID PASSAGE, HOLE CONTOUR PER AS4266. 17. INVENTORIED PARTS CONFORMING TO THE PREVIOUS ISSUE MAY BE USED TO DEPLETION. 18. SURFACE TEXTURE: SYMBOLS PER ASME Y14.36M. REQUIREMENTS PER ASME B46.1. UNLESS OTHERWISE SPECIFIED, MACHINED SURFACES TO BE 125 MICROINCHES Ra. FORGED SURFACES MA
31、Y BE 250 MICROINCHES Ra. 19. DIMENSIONING AND TOLERANCING: ASME Y14.5M-1994. 20. DIMENSIONS ARE IN INCHES. UNLESS OTHERWISE SPECIFIED, TOLERANCES: LINEAR DIMENSIONS .016, ANGULAR DIMENSIONS 030. /21/ EXAMPLES OF PART NUMBERS: AS6048 W 08 08 V A BASIC PART NUMBER MATERIAL CODE LETTER /1/ SIZE CODE FOR PORT 1 IN .062 INCREMENTS SIZE CODE FOR PORT 2 IN .062 INCREMENTS SUFFIX CODE LETTER /4/ FINISH CODE LETTER /3/ /13/
