1、INCH-POUNDMS21954B15 June 2000SUPERSEDINGMS21954A16 May 1975DETAIL SPECIFICATION SHEETBODY, CLUSTER FITTING, TWO-WAY, 90 , FLAREThis specification is approved for use by all Departments and Agenciesof the Department of Defense .EDC10 52 xT THREAD2 x CHAMFER2 xFITTING END IN ACCORDANCEWITH SAE AS4395
2、 STYLE G FORTUBE SIZE SPECIFIED (2 x)CONTOUR AND MOUNTING ENDIN ACCORDANCE WITH FIGURES 2 AND 3 AND TABLE II FOR FLOW SIZE SPECIFIEDB90 2 1/2R .0312 xEFIGURE 1. Body, cluster fitting .1 of 6AMSC N/A FSC 4730DISTRIBUTION STATEMENT A . Approved for public release; distribution is unlimited.Provided by
3、 IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS21954B2TABLE IA. Dimensions for low flow sizes .Low Flow Size Tube Thread T B C D EAl Alloy Al Alloy 1 / OD SAE AS88797075 2014/2024W3L -3L .187 .375-24UNJF-3A .500 .540 .710 1.109W4L -4L .250 .4375-20UNJF-3A .5
4、00 .625 .710 1.187W5L -5L .312 .500-20UNJF-3A .500 .625 .710 1.187W6L -6L .375 .5625-18UNJF-3A .500 .640 .710 1.2031 / Aluminum alloy 2014 and 2024 parts are cancelled. Use Aluminum alloy 7075 parts for new design.Cancelled parts may be used till stock is exhausted.TABLE IB. Dimensions for high flow
5、 sizes .High Flow Size Tube Thread T B C D EAl Alloy Al Alloy 1/ OD SAE AS88797075 2014/2024W4H -4H .250 .4375-20UNJF-3A .594 .625 .710 1.438W5H -5H .312 .500-20UNJF-3A .594 .625 .710 1.438W6H -6H .375 .5625-18UNJF-3A .594 .648 .710 1.460W8H -8H .500 .750-16UNJF-3A .594 .750 .750 1.5621 / Aluminum a
6、lloy 2014 and 2024 parts are cancelled. Use Aluminum alloy 7075 parts for new design.Cancelled parts may be used till stock is exhausted.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS21954B3.008.002R.041.021R F THRU4 LANDS IN LINESYMMETRICALABOUT
7、 C L .125.062RRCORNER ON R A MAYBE BROKEN .031 MAXFOR FORGINGS, THE POSITIONOF THE PARTING LINE IS OPTIONALAND NEED NOT BE AS INDICATEDML 4 x 7 MAX MOUNTING END DIMENSIONS32.004 AG JDKH.003 A.003 A.406.047AFIGURE 2. Mounting end .Provided by IHSNot for ResaleNo reproduction or networking permitted w
8、ithout license from IHS-,-,-MS21954B4CONTOUR DIMENSIONSEXTERNALR .219(2 x).406(2 x)CDETAIL BR B MAXR AR EDETAIL B SHOWS SINGLE OR DOUBLE FILLET,WHICHEVER IS APPLICABLE TO TABLE II, FOOTNOTE 3 .FOR ALL FILLETS BETWEEN LEGS.R EDETAIL B ENLARGED(R B MAX)(R A) (R A)FIGURE 3. External contour .Provided b
9、y IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS21954B5TABLE II. Dimensions for contour and mounting end .Type A B C D E F G H J K L MFitting .031 Max Max Max .031 .0005 .004 .005 .010 .010 .004 .0051 / 2 / 2 / 3 /Low Flow .562 .636 .844 .995 .125 .5000 .664
10、 1.000 .797 .312 .249 .143High Flow .812 .909 .844 1.188 .375 .8125 1.045 1.188 1.078 .375 .283 .1751 / 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 partd
11、imensions.3 / Fillet radius E between legs shall not intersect A radius.REQUIREMENTS:1. The requirements for acquiring the product described herein shall consist of this specification sheetand SAE AS4875/1.2. Material: Aluminum alloy 7075-T73 per AMS-QQ-A-225/9. Aluminum alloy forging, 7075-T73 perA
12、MS-QQ-A-367.3. Finish: See acquisition standard SAE AS4875/1. Aluminum alloy 7075 fittings shall be dyed brown.4. All machined surfaces shall be finished to 250 in R a , unless otherwise specified. Surface finish shallbe in accordance with ASME B46.1.5. Fittings shall be free of all burrs and sliver
13、s.NOTES:1. Dimensions in inches. Unless otherwise specified, tolerances : decimals .010, angles 1/2 .2. Dimensioning and tolerancing per ASME Y14.5.3. Part Identification number (PIN)Example of PIN : MS21954W4LBasic part identifierMS21954 WMaterial code “W”replaces the dash (-)for al alloy 7075.Size
14、 4 low flow fitting4LProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS21954B6Custodians: Preparing activity:Air Force - 99 DLA - CCNavy - ASDLA - CC (Project 4730-0818)Review activities:Air Force - 82Navy - SAProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
