MIL-DTL-28919B(MC)
As an alternate to the cotton thread, a polyester, cotton-covered
thread conforming to A-A-50199, ticket No. 50, 3-ply or ticket
No. 70, 2-ply may be used for all sewing operations.
3.3.7.1. Automatic button sewing. If an automatic machine which
sews and shanks (wraps) the buttons in one operation is used, the
thread shall be waxed nylon monocord special No. 5, having a
minimum breaking strength of 16 pounds (7.3 kg) and minimum
length per pound of 2150 yards (1965 m). This thread shall be
tested for these requirements and for colorfastness (see 3.3.7.3)
in accordance with test methods in V-T-295.
3.3.7.2. Color. The color of the thread for the trousers shall
be olive drab, T-1, cable No. 66023 (see DoD Standard Color Card
of Official Standardized Shades for Sewing Threads 1968).
3.3.7.3. Colorfastness. The colored thread shall show fastness
to light and wet dry-cleaning equal to or better than the
standard sample. When no standard sample is available, the
colored thread shall show "good" fastness to light and wet
dry-cleaning.
3.3.8 Gimp. The gimp for reinforcing buttonholes shall be
cotton, ticket No. 8, conforming to type I or II of A-A-50198.
3.3.8.1. Color. The color requirements for the gimp for the
trousers shall be the same as specified in 3.3.7.2 for the
thread.
3.3.8.2. Colorfastness. The colored gimp shall show fastness to
wet dry-cleaning equal to or better than the standard sample.
When no standard sample is available, the colored gimp shall show
"good" fastness to wet dry-cleaning.
3.3.9 Buttons. The buttons for the hip pocket and fly-tab
closure shall conform to type II, class D, style 4, 22-line,
glossy finish, of V-B-871. The color of the buttons for the
trousers shall be green, shade AF, cable No. 62017 (see DoD
Standard Shades for Buttons 1966).
3.3.10 Labels. Each pair of trousers shall have a combination
personal-identification-size-instruction label. The combination
label shall conform to type VI, class 14 of DDD-L-20. The label
shall conform to the colorfastness and writing test requirements
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