1、 MS21955C INCH-POUND6 April 2009 SUPERSEDING MS21955B 15 June 2000 DETAIL SPECIFICATION SHEET BODY, CLUSTER FITTING, TWO-WAY, 180, FLARE This specification is approved for use by all Departments and Agencies of the Department of Defense . The requirements for acquiring the product described herein s
2、hall consist of this specification sheet and SAE-AS4875. FIGURE 1. Body, cluster fitting. AMSC N/A FSC 4730 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS21955C 2 Tube Low flow size OD inches (mm) Thread T SAE-AS8879 B inches (mm) C inches (mm) D
3、 dia inches (mm) E inches (mm) W3L .187 (4.75) .375-24UNJF-3A .500 (12.70) .540 (13.72) .710 (18.03) 1.109 (28.17) W4L .250 (6.35) .4375-20UNJF-3A .500 (12.70) .625 (15.88) .710 (18.03) 1.187 (30.15) W5L .312 (7.92) .500-20UNJF-3A .500 (12.70) .625 (15.88) .710 (18.03) 1.187 (30.15) W6L .375 (9.53)
4、.5625-18UNJF-3A .500 (12.70) .640 (16.26) .710 (18.03) 1.203 (30.56) Tube High flow size OD inches (mm) Thread T SAE-AS8879 B inches (mm) C inches (mm) D dia inches (mm) E inches (mm) W4H .250 (6.35) .4375-20UNJF-3A.594 (15.09) .625 (15.88) .710 (18.03) 1.438 (36.53) W5H .312 (7.92) .500-20UNJF-3A .
5、594 (15.09) .625 (15.88) .710 (18.03) 1.438 (36.53) W6H .375 (9.53) .5625-18UNJF-3A.594 (15.09) .648 (16.46) .710 (18.03) 1.460 (37.08) W8H .500 (12.70) .750-16UNJF-3A .594 (15.09) .750 (19.05) .750 (19.05) 1.562 (39.67) NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for informa
6、tion only. 3. Dimensioning and tolerancing in accordance with ASME Y14.5M. 4. All machined surfaces shall be finished to 250 in (6.35m) Ra, unless otherwise specified. Surface finish shall be in accordance with ASME B46.1. 5. Fittings shall be free of all burrs and slivers. 6. Unless otherwise speci
7、fied tolerances for three point decimals .010 inch (0.25 mm). FIGURE 1. Body, cluster fitting - Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS21955C 3 Inches mm .219 .406 5.56 10.31 FIGURE 2. Cluster fitting body contour and mounting e
8、nd. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS21955C 4 Inches mm .003 .031 .047 .062 .125 .406 0.08 0.79 1.19 1.57 3.18 10.31 SECTION A - A FIGURE 2. Cluster fitting body contour and mounting end - Continued. Provided by IHSNot for ResaleNo r
9、eproduction or networking permitted without license from IHS-,-,-MS21955C 5 DETAIL A - A Inches mm .002 .004 .008 .021 .041 0.05 0.10 0.20 0.53 1.04 Type Fitting A rad .031 inches (mm) B rad Max (See note 7) inches (mm) C Max (See note 8) inches (mm) D Max (See note 8) inches (mm) F .0005 (0.013) in
10、ches (mm) G dia .004 (0.10) inches (mm) Low Flow .562 (14.27) .636 (16.15) .844 (21.44) .995 (25.27) .5000 (12.700) .664 (16.87) High Flow .812 (20.62) .909 (23.09) .844 (21.44) 1.188 (30.18) .8125 (20.638) 1.045 (26.54) Type Fitting H .005 (0.13) inches (mm) J dia .010 (0.25) inches (mm) K Max .010
11、 (0.25) inches (mm) L Max .004 (0.10) inches (mm) M .005 (0.13) inches (mm) Low Flow 1.000 (25.40) .797 (20.24) .312 (7.92) .249 (6.32) .143 (3.63) High Flow 1.188 (30.18) 1.078 (27.38) .375 (9.53) .283 (7.19) .175 (4.45) FIGURE 2. Cluster fitting body contour and mounting end - Continued. Provided
12、by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS21955C 6 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for information only. 3. Dimensioning and tolerancing in accordance with ASME Y14.5M. 4. All machined surfaces shall be finished to
13、250 in (6.35m) Ra, unless otherwise specified. Surface finish shall be in accordance with ASME B46.1. 5. Fittings shall be free of all burrs and slivers. 6. Unless otherwise specified tolerances for three point decimals .010 inch (0.25 mm. 7. B radius is the max envelope dimension for forging, flash
14、, and other projections on A radius. 8. Dimensions C and D represent the max envelope which shall be large enough to meet final part dimensions. FIGURE 2. Cluster fitting body contour and mounting end - Continued. REQUIREMENTS: Dimensions and configurations: See figures 1 and 2. Material: Aluminum a
15、lloy 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 procurement standard SAE-AS4875/1. Part or Identifying Number (PIN): MS21955 W 4L Size 4 low flow fitting Material code “W” for al alloy 7075 (see table I). Specific
16、ation sheet number PIN Example: MS21955W4L identifies a .250 inch low flow cluster fitting. Supersession data: Aluminum alloys 2014 and 2024 has been replaced by aluminum alloy 7075, see table I for replacement PINs. Provided by IHSNot for ResaleNo reproduction or networking permitted without licens
17、e from IHS-,-,-MS21955C 7 TABLE I. Supersession data. Low flow size replacement PINs Superseded PIN Al alloy 2014/2024 Replacement PIN Al alloy 7075 MS21955-3L MS21955W3LMS21955-4L MS21955W4L MS21955-5L MS21955W5LMS21955-6L MS21955W6L High flow size replacement PINs Superseded PIN Al alloy 2014/2024
18、 Replacement PIN Al alloy 7075 MS21955-4H MS21955W4HMS21955-5H MS21955W5H MS21955-6H MS21955W6HMS21955-8H MS21955W8H Changes from previous issue. Marginal notations are not used in this revision to identify changes with respect to the previous issue due to the extent of the changes. Referenced docum
19、ents. In addition to SAE-AS4875, this document references the following: ASME Y14.5M ASME B46.1 SAE-AMS-QQ-A-225/9 SAE-AMS-QQ-A-367 SAE-AS4395 SAE-AS4875/1 SAE-AS8879 CONCLUDING MATERIAL Custodians: Preparing activity: Navy - AS DLA - CC Air Force - 99 DLA CC (Project 4730-2009-001) Review activitie
20、s: Navy - SA Air Force - 71 NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at http:/assist.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
