1、AMSC N/A FSC 5310 INCH-POUND MS51969C 15 August 2011 SUPERSEDING MS51969B 24 July 1972 DETAIL SPECIFICATION SHEET NUT, PLAIN, HEXAGON BRASS, BLACK CHEMICAL FINISH, UNC-2B This specification sheet is approved for use by all Departments and Agencies of the Department of Defense. The requirements for a
2、cquiring the product described herein shall consist of this specification sheet and procurement specification FF-N-836. FGH HAPPROX .01630 30 30FIGURE 1. Nut, Acceptable Designs. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS51969C 2 TABLE I. Das
3、h Numbers and Dimensions. NOTES: 1. Material: Brass, Naval, in accordance with ASTM B21/B21M, Copper, Alloy UNS C46200, H04 hard or UNS C46400, H02 half-hard. 2. Protective Coating: Black chemical finish in accordance with MIL-F-495. 3. Threads: The threads shall be in accordance with FED-STD-H28/2.
4、 4. Dimensions: All dimensions are in inches, unless otherwise specified. 5. Part Number: The MS part number consists of the MS number, plus the dash number. Example: MS51969-1. 6. Referenced documents shall be of the issue in effect on date of invitations for bid. 7. For design feature purposes, th
5、is standard takes precedence over procurement documents referenced herein. MATERIAL DASH NO DASH NO DASH NO DASH NO DASH NO DASH NO DASH NO DASH NO DASH NO DASH NO BRASS 1 2 3 4 5 6 7 8 9 10 NOMINAL SIZE OR BASIC MAJOR DIAMETER OF THREAD 1/4 .2500 5/16 .3125 3/8 .3750 7/16 .4375 1/2 .5000 9/16 .5625
6、 5/8 .6250 3/4 .7500 7/8 .8750 1 1.0000 THREADS PER INCH 20 18 16 14 13 12 11 10 9 8 WIDTH NOM. F ACROSS MAX. FLATS MIN. 7/16 .4375 .428 1/2 .5000 .489 9/16 .5625 .551 11/16 .6875 .675 3/4 .7500 .736 7/8 .8750 .861 15/16 .9375 .922 1-1/8 1.1250 1.088 1-5/16 1.3125 1.269 1-1/2 1.5000 1.450 WIDTH MAX.
7、 G ACROSS CORNERS MIN. .505 .488 .577 .557 .650 .628 .794 .768 .866 .840 1.010 .982 1.083 1.051 1.299 1.240 1.516 1.447 1.732 1.653 NOM. H THICKNESS MAX. MIN. 7/32 .226 .212 17/64 .273 .258 21/64 .337 .320 3/8 .385 .365 7/16 .448 .427 31/64 .496 .473 35/64 .559 .535 41/64 .665 .617 3/4 .776 .724 55/
8、64 .887 .831 MATERIAL DASH NO DASH NO DASH NO DASH NO DASH NO DASH NO DASH NO DASH NO DASH NO DASH NO BRASS 11 12 13 14 15 16 17 18 19 20 NOMINAL SIZE OR BASIC MAJOR DIAMETER OF THREAD 1-1/8 1.1250 1-1/4 1.2500 1-3/8 1.3750 1-1/2 1.5000 1-3/4 1.7500 2 2.0000 2-1/4 2.2500 2-1/2 2.5000 2-3/4 2.7500 3
9、3.0000 THREADS PER INCH 7 7 6 6 5 4-1/2 4-1/2 4 4 4 WIDTH NOM. F ACROSS MAX. FLATS MIN. 1-11/16 1.6875 1.631 1-7/8 1.8750 1.812 2-1/16 2.0625 1.994 2-1/4 2.2500 2.175 2-5/8 2.6250 2.538 3 3.0000 2.900 3-3/8 3.3750 3.262 3-3/4 3.7500 3.625 4-1/8 4.1250 3.988 4-1/2 4.5000 4.350 WIDTH MAX. G ACROSS COR
10、NERS MIN. 1.949 1.859 2.165 2.066 2.382 2.273 2.598 2.480 3.031 2.893 3.464 3.306 3.897 3.719 4.330 4.133 4.763 4.546 5.196 4.959 NOM. H THICKNESS MAX. MIN. 31/32 .999 .939 1-1/16 1.094 1.030 1-11/64 1.206 1.138 1-9/32 1.317 1.245 1-1/2 1.540 1.460 1.23/32 1.763 1.675 1-59/64 1.970 1.874 2-9/64 2.19
11、3 2.089 2-23/64 2.415 2.303 2-37/64 2.638 2.518 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS51969C 3 8. Black oxide coated brass threaded fasteners are prohibited from use on Navy ships. See S9086-CJ-STM-010, Naval Ships Technical Manual, Chapt
12、er 075, Fasteners. 9. 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. The following nuts covered by dash numbers given in MS35690 are cancelled after the date indicated on the cance
13、lled document. Use the dash numbers given in the preceding sheet. The cancelled nuts cannot always replace the new nuts and should be used until existing stocks are depleted. Use only the new nuts for design and replacement. Replacement shall be in accordance with Table II. Interchangeability inform
14、ation regarding part numbers on superseding drawings is also contained in Table II. Table II. Interchangeability table of cancelled and superseding part numbers. PART NUMBERS CANCELLED MS35690 NEW MS51969 CANCELLED MS35690 NEW MS51969 CANCELLED MS35690 NEW MS51969 411 412 511 512 611 612 711 811 1 1
15、 2 2 3 3 4 5 911 1011 1211 1411 1611 1811 2011 2211 6 7 8 9 10 11 12 13 2411 2811 3211 3611 4011 4411 4811 14 15 16 17 18 19 20 MILITARY INTEREST Preparing activity: DLA - IS Custodians: Army AR Navy SH Air Force 71 (Project 5310-2011-011) NOTE: The activities listed above were interested in this do
16、cument 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-,-,-
