DLA A-A-55284-1995 BUCKLES BRASS《铜管扣环》.pdf
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1、A-A-55284 W 9999974 0368786 513 H A-A-55284 September 26, 1995 COMMERCIAL ITEM DESCRIPTION BUCKLES, BRASS The General Services Administration has authorized the use of this commercial item description as a replacement for MIL-B- 17910D and MIL-B-20588F for all Federal agencies. 1. - SCOPE. This comm
2、ercial item description covers buckles intended for use with the mens coat belt or the military police belt. 2. CLASSIFICATION. The buckles shall be of the following classes and types: Class 1 - Solid polished brass (Marine Corps) Type I - Red brass Type II - Yellow brass Class 2 - Die cast zinc and
3、 aluminum alloy with chrome- plated finish Class 3 - Die cast zinc and aluminum alloy with brass- plated finish Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any data which may improve this document should be sent to: Defense Personnel Support Center, Clothing
4、and Textiles Directorate, Attn: DPSC-FQSE, 2800 South 20th Street, Philadelphia, PA 19145-5099. I AMSC N/A FSC 8315 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-
5、5 52 8 4 3. SALIENT CHARACTERISTICS. The class 1, type I buckle shall be 1-3/16 x 2-5/32 x 3/32 inch (+1/64 inch), and the corners and edges shall be slightly beveled, The thickness of the outside vertical portions of the body shall be .250 (k.005) inch. The thickness of the outside horizontal porti
6、ons of the body shall be ,156 (k.005) inch. The thickness of the inside vertical bar shall be .187 (2,005) inch. The class 1, type II buckle shall have outside dimensions of 2 x 2-5/16 x 1/8 inch (+1/16 inch) and shall be of stamped construction. The inside dimensions of the buckle shall be 1-1/2 x
7、1-13/16 x 1/8 inch (+1/16 inch). The center vertical bar shall be 1/4 inch thick, and the tongue wire shall be .144 (k.005) inch in diameter. The class 2 and class 3 buckles shall have outside dimensions of 2-3/8 x 2-7/16 x 3/16 inch (+ 1/16 inch) and shall be of die cast construction. The inside di
8、mensions of the buckle shall be 1-3/4 x 1-13/16 x 3/16 inch (+1/16 inch). The center vertical bar shall be 7/32 inch thick, and the tongue wire shall be -144 (k.005) inch in diameter. Figures 1 and 2 are furnished for informational purposes only . 3.1 Materials 3.1.1 Class 1, tme I and type II. The
9、body of the type I buckle, made from copper alloy number 230 (red brass), and .the type II buckle, made from copper alloy number 260 or 268 (yellow brass), shall conform to ASTM B36 or ASTM B121 requirements. A cut-out shall be provided in the center bar of the type II buckle to retain the tongue in
10、 position in the center of the bar. The top surfaces and outside edges of the buckle body shall be polished to a uniform, mirror-like finish. The back shall have a satin finish. 3.1.2 Class 2 and class 3. The body of the class 2 and class 3 buckles shall be die cast from a zinc base alloy conforming
11、 to ASTM B86 requirements, Ribs shall be provided on the center bar to retain the tongue in the center of the bar. the class 2 buckle body shall be burnished to a smooth surface texture. The body shall then be copper plated followed by nickle plating and then by chrome plating. buckle body which are
12、 exposed to view when worn shall be polished to a uniform, mirror-like finish. The class 3 buckle body shall be prepared and plated in the same manner as the class 2 buckle; except, in lieu of chrome, the final plating shall be brass. After polishing, the body shall be coated with a clear, baked-on
13、epoxy lacquer. All surfaces of The top surfaces of the 3.1.3 The tonsue. The wire for the tongue (except class 1, type I) shall be fabricated from copper alloy number 260 and 270 conforming to ASTM B134, ASTM B159, or ASTM B206 requirements. When assembled to the buckle body, the tongue shall not bi
14、nd on the center bar; the tip of the tongue shall not protrude beyond the outer edge of the body, but shall protrude a minimum of 3/64 inch beyond the inner edge of the body; it shall not be possible by hand to slide the tongue out of the cutout in the center bar * t Provided by IHSNot for ResaleNo
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