1、AMSC FSC 4730 INCH-POUND MS21958D 4 August 2011 SUPERSEDING MS21958C 15 June 2000 DETAIL SPECIFICATION SHEET BODY, CLUSTER FITTING, TWO-WAY, 180, INTERNAL BOSS This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the prod
2、uct described herein shall consist of this specification sheet and SAE AS4875. Inches mm .062 1.58 FIGURE 1. Body, cluster fitting. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS21958D 2 TABLE I. Dimensions. 1/ 2/ 3/ Low flow sizes Low flow size
3、Tube Thread T A B C D J K Al Alloy Al Alloy OD SAE AS8879 .031 .031 7075 2014/2024 Inches (mm) Inches (mm) Inches (mm) Inches (mm) Inches (mm) Inches (mm) Inches (mm) W4L -4L .250 (6.35) .4375-20UNJF-3B .312 (7.93) .500 (12.7) .688 (17.48) .406 (10.31) .625 (15.88) 1.062 (26.98) W5L -5L .312 (7.93)
4、500-20UNJF-3B .344 (8.74) .500 (12.7) .750 (19.05) .438 (11.13) .625 (15.88) 1.094 (27.79) W6L -6L .375 (9.53) .5625-18UNJF-3B .344 (8.74) .500 (12.7) .812 (20.63) .469 (11.91) .625 (15.88) 1.125 (28.58) TABLE I. Dimensions - Continued. 1/ 2/ 3/ High flow sizes High flow size Tube Thread T A B C D
5、J K Al Alloy Al Alloy OD SAE AS8879 .031 .031 7075 2014/2024 Inches (mm) Inches (mm) Inches (mm) Inches (mm) Inches (mm) Inches (mm) Inches (mm) W4H -4H .250 (6.35) .4375-UNJF-3B .312 (7.93) .594 (15.09) .688 (17.48) .297 (7.54) .625 (15.88) 1.219 (30.96) W5H -5H .312 (7.93) .500-UNJF-3B .375 (9.53)
6、 .594 (15.09) .750 (19.05) .312 (7.93) .625 (15.88) 1.250 (31.75) W6H -6H .375 (9.53) .5625-UNJF-3B .406 (10.31) .594 (15.09) .812 (20.63) .375 (9.53) .625 (15.88) 1.312 (33.33) W8H -8H .500 (12.7) .750-UNJF-3B .422 (10.72) .594 (15.09) 1.125 (28.58) .625 (15.88) .750 (19.05) 1.500 (38.1) 1/ Aluminu
7、m alloy 2014 and 2024 parts are cancelled. Use Aluminum alloy 7075 parts for new design. Cancelled parts may be used till stock is exhausted. 2/ Dimensions are in inches. 3/ Metric equivalents are given for information only. Provided by IHSNot for ResaleNo reproduction or networking permitted withou
8、t license from IHS-,-,-MS21958D 3 .008.002R.041.021RF THRU4 LANDS IN LINESYMMETRICALABOUT CLRRCORNER ON R A MAYBE BROKEN .031 MAXFOR FORGINGS, THE POSITIONOF THE PARTING LINE IS OPTIONALAND NEED NOT BE AS INDICATEDML4 x 7 MAXMOUNTING END DIMENSIONS32DGJKH.004 F.406.047.125.062.003 A.003 AAInches mm
9、Inches mm Inches mm .002 .05 .021 .53 .062 1.57 .003 .08 .031 .79 .125 3.18 .004 .10 .041 1.04 .406 10.31 .008 .20 .047 1.19 FIGURE 2. Mounting end.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS21958D 4 R ACONTOUR DIMENSIONSEXTERNALC.219.406R B M
10、AX4 x RInches mm Inches mm .406 10.31 .219 5.56 FIGURE 3. External contour. TABLE II. Dimensions for contour and mounting end. 1/ 2/ 3/ 4/ Type A B C D F G H J K L M Fitting .031 Max Max Max .0005 .004 .005 .010 .010 .004 .005 Inches (mm) Inches (mm) Inches (mm) Inches (mm) Inches (mm) Inches (mm) I
11、nches (mm) Inches (mm) Inches (mm) Inches (mm) Inches (mm) Low Flow .562 (14.28) .636 (16.15) .844 (21.44) .995 (25.27) .500 (12.7) .664 (16.87) 1.000 (25.4) .797 (20.24) .312 (7.93) .249 (6.33) .143 (3.63) High Flow .812 (20.63) .909 (23.09) 1.156 (29.36) 1.188 (30.18) .8125 (20.64) 1.045 (26.54) 1
12、188 (30.18) 1.078 (27.38) .375 (9.53) .283 (7.19) .175 (4.45) 1/ B radius is the max envelope dimension for forging draft, flash, and other projections on A radius. 2/ Dimensions C and D represent the max envelope which shall be large enough to meet final part dimensions. 3/ Dimensions are in inche
13、s. 4/ Metric equivalents are given for information only. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS21958D 5 REQUIREMENTS: Dimensions. See figure 1, figure 2, figure 3, table I and table II. Unless otherwise specified tolerances for decimals a
14、re .010, angles .5. Dimensioning and tolerancing are in accordance with ASME Y14.5. Material. Aluminum alloy 7075-T73 in accordance with SAE AMS-QQ-A-225/9. Aluminum alloy forging, 7075-T73 in accordance with SAE AMS-QQ-A-367. Finish. See aerospace standard SAE AS4875. Aluminum alloy 7075 fittings s
15、hall be dyed brown. Surfaces. All machined surfaces shall be finished to 250 in Ra (.00635mm), unless otherwise specified. Surface finish shall be in accordance with ASME B46.1. Fitting surface shall be free of all burrs and slivers. Identification of product. The Part or Identifying Number (PIN) fo
16、r the fitting consists of the MS number, the material code and size number. Example of PIN: MS21958W4L Changes from previous issue. Marginal notations are not used in the revision to identify changes with respect to the previous issue due to the extensiveness of the changes. Referenced documents. In
17、 addition to SAE AS4875, this document references the following: SAE AMS-QQ-A-225/9 SAE AS5202 ASME B46.1 SAE AMS-QQ-A-367 SAE AS8879 ASME Y14.5 Basic part identifier MS21958 W Material code “W” replaces the dash (-) for al alloy 7075. 4L Size 4 low flow fitting Provided by IHSNot for ResaleNo repro
18、duction or networking permitted without license from IHS-,-,-MS21958D 6 CONCLUDING MATERIAL Custodians: Preparing activity: Army - AV DLA - CC Navy AS Air Force 99 DLA - CC (Project 4730-2011-066) Review activities: Army AR Navy SA, MC Air Force - 71 NOTE: The activities listed above were interested
19、 in this document as of the date of this document. Since organization and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at https:/assist.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
