DDD-F-416F
Type I, Class 3 headings shall be not less than 5/16 inch in diameter. Testing for rope shall be
as specified in 4.3.2.
TABLE I. Rope for distance lines. 1/
TYPE ROPE
DIAMETER
BREAKING STRENGTH
twisted nylon
1/4 inch
not less than 1486 lbs
5/16 inch
not less than 2295 lbs
3/8 inch
not less than 3240 lbs
twisted polyester
1/4 inch
not less than 1315 lbs
5/16 inch
not less than 2050 lbs
3/8 inch
not less than 2900 lbs
solid braided nylon
1/4 inch
not less than 1440 lbs
5/16 inch
not less than 2160 lbs
3/8 inch
not less than 3060 lbs
solid braided polyester
1/4 inch
not less than 1295 lbs
5/16 inch
not less than 1945 lbs
3/8 inch
not less than 2755 lbs
1/ Information for this table was obtained from CI-1303, CI-1304, CI-1321,
and CI-1322 (see 2.2).
3.3.7. Grommets. Grommets shall be brass, commercial size 2, 3, or 4, rolled rim grommets
with spur washers in accordance with NASM-16491, Type III, Class 1.
3.3.8 Snaphooks and rings. The snaphooks and rings shall conform to MIL-H-15021. The
snaphooks shall be Type I unless otherwise specified.
3.3.9 Thimbles (for Type I, Class 3 heading only). The thimbles for the distance lines shall be
galvanized steel and shall be of the type used for 5/16 inch diameter wire rope, semicircular at
the closed ends and tapering at the free ends.
3.3.10 Leather. The leather tabs shall be undyed natural colored full grain cattlehide. The
leather shall be soft and pliable. The leather shall be clean and free of stain or other foreign
matter. The flesh side of the leather shall be smooth and free of loose flesh. Leather shall have
a minimum thickness of 1/8 inch.
3.3.11 Artificial leather. When directed by the contract or purchase order (see 6.2 and 6.3) or
recommended by the manufacturer, artificial leather conforming to the requirements of 3.3.10 as
applicable may be substituted for leather. Artificial leather shall also have a minimum thickness
of 1/8 inch.
3.3.12 Fringe. When specified (see 6.2), the fringe shall conform to Class 2 of MIL-F-2310,
except for automobile flags which shall conform to Class 1 of MIL-F-2310. Rayon/acetate may
be substituted for cuprammonium rayon. When used, the rayon/acetate yarn for the heading
and bullion shall be a 575 ± 15 denier acetate, continuous multi-filament bright viscose rayon.
All other requirements of MIL-F-2310 shall apply, except the heading of the finished fringe shall
have a minimum of 8 ends for Class 1 or 12 ends for Class 2 in the float stripe and a minimum
of 9 ends for Class 1 or 14 ends for Class 2 in each border. The color of the fringe shall be
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