COMMERCIAL ITEM DESCRIPTION A-A-51308
3.7 Finish. Delete entirely and substitute:
“3.7 Finish. The film shall be double polished, conforming to a 60 degree specular gloss of 140 units on each surface when tested on a dull background as specified in ASTM-D-2457.”
The outer wall shall be 12 gage (0.012 inch nominal), the inner wall shall be 8 gage (0.008 inch nominal), and the zipper reinforcing strips shall be between 0.008 and 0.020 inch material thickness.
The zipper closure shall conform to the requirements of Federal Specification V-F-106 except it shall be fabricated of a polyester coil with white enameled die case zinc slide and end stops, size L, LS or LM. The arm splint shall be Type I Style 3, nonseparating, nonreversible. The leg splint shall be Type IV Style 8, separating, nonreversible. Tape shall be 9/16 inch wide, white open weave (Leno) cotton or white cotton impregnated with a clear vinyl plastic.
The leg splint zipper pull shall include a thong fabricated of nylon cord conforming to Type IA (coreless) of MIL-C-5040. The Core may be removed. The ends of the cord shall be tied by means of a non-slippable knot to form a loop 2 inches ± 1/4 inch in length. Strands of cord ends shall be fused.
Grommets on the leg split shall be fabricated from polyvinyl chloride. Shall be Halkey-Roberts Inc. No. 44GF or No. 44GH, or equal.
The valve for opening and closing the air inflation passage shall be a screw type with knurled external member to which a plastic mouthpiece is assembled. The valve housing shall be fabricated from a polyvinyl chloride compatible with the splint plastic. The valves shall be Halkey-Roberts No. 40 ASE or equal for the arm splint and No. 240 ASE or equal for the leg splint.
The inner and outer walls, zipper reinforcing strips, zipper tapes and valve assembly shall be heat sealed to make an air tight end item.
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