1、AMSC N/A FSC 4730 AN785 Rev 7 4 August 2011 SUPERSEDING AN785 Rev 6 14 August 1956 DETAIL SPECIFICATION SHEET COUPLING, UNION, BRAZING This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the product described herein shal
2、l consist of this specification sheet and MIL-DTL-6001. FIGURE 1. Coupling, union, brazing. INCH-POUND Inactive for new design after 24 July 1998. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE I. Dash numbers and size. 1/ 2/ Dash number Tubin
3、g outside diameter Thread T AND10089 A .015 B E .015 Diameter K +.005 -.002 Diameter H Diameter N .010 Q Reference Weight Max Brass Corrosion resistant steel Brass Corrosion resistant steel 2 C2 .125 .3125-32 UNEF-3A .750 .438 .003 .312 .125 .219 .375 .51 3 C3 .188 .3750-24 UNF-3A .938 .375 .191 .28
4、1 .438 .51 4 C4 .250 .4375-20 UNF-3A 1.000 .500 .375 .257 .344 .500 .65 5 C5 .312 .5000-20 UNF-3A 1.188 .625 .004 .500 .323 .406 .562 .72 6 C6 .375 .6250-18 UNF-3A 1.250 .750 .500 .386 .469 .625 .87 8 C8 .500 .7500-16 UNF-3A 1.625 .875 .750 .516 .609 .875 1.01 10 C10 .625 .9375-14 NS-3 1.688 1.000 .
5、750 .641 .719 .875 1.09 TABLE I. Dash numbers and size Continued. 1/ 2/ Dash number Tubing outside diameter Thread T AND10089 A 381 B E .381 Diameter K +.127 -.051 Diameter H Diameter N .254 Q Reference Weight Max Brass Corrosion resistant steel Brass Corrosion resistant steel 2 C2 3.175 .3125-32 UN
6、EF-3A 20.625 11.125 0762 7.925 3.175 5.563 9.525 12.954 3 C3 4.267 .3750-24 UNF-3A 23.825 9.525 4.851 7.137 11.125 12.954 4 C4 6.350 .4375-20 UNF-3A 25.400 14.275 .1016 9.525 6.528 8.738 12.7 16.510 5 C5 7.925 .5000-20 UNF-3A 26.975 15.875 12.70 8.204 10.312 14.275 18.288 6 C6 9.525 .6250-18 UNF-3A
7、33.325 19.050 12.70 9.804 11.913 15.875 22.098 8 C8 12.700 .7500-16 UNF-3A 38.100 22.225 19.05 13.106 15.469 22.225 25.654 10 C10 15.875 .9375-14 NS-3 44.450 23.825 19.05 16.281 18.263 22.225 27.686 1/ Dimensions are in inches 2/ Metric equivalents are given for information only. AN785Rev72Provided
8、by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AN785 Rev 7 3 REQUIREMENTS Dimensions. See table I. Unless otherwise specified tolerances on decimals are .010, angles 0.5. Configuration. See figure 1. Inactive for new design. Dash numbers 12 and 16 are inacti
9、ve for new design. Dash numbers 2, 3 and 4 are inactive for new design except for use in oxygen systems and engine primer lines. Dash numbers 5, 6, 8 and 10 are not to be used on engine primer lines. Materials: Brass; bars, shapes or forgings. Corrosion resistant steel; bars, shapes or forgings. See
10、 procurement specification. Finish: See procurement specification. Identification of product. Add P before the dash number for cadmium plated brass nipple. AN785 X X Size Material, finish Drawing number Example of Part or Identifying Number (PIN): AN785-4 coupling union, brass, for .250 tubing OD. A
11、N785P4 coupling union, brass, cadmium plated, for .250 tubing OD. AN785C4 coupling union, corrosion resistant steel, for .250 tubing OD. Workmanship. Break all sharp edges and remove all hanging burrs and slivers which might become dislodged under usage. Changes from previous issue. Marginal notatio
12、ns are not used in this revision to identify changes with respect to the previous issue due to the extent of the changes. Referenced documents. In addition to MIL-DTL-6001, this document references the following: AND10089 CONCLUDING MATERIAL Custodians: Preparing activity: Army AR DLA - CC Navy SH A
13、ir Force - 99 DLA - CC (Project 4730-2010-181) Review activities: Army AT, AV, CR4 Navy AS, CG, MC, SA, YD 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 https:/assist.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
