MIL-T-43624B, MILITARY SPECIFICATION: THREAD, POLYESTER, SPUN (20-FEB-1991) [S/S BY A-A-59989]

MIL-T-43624B, MILITARY SPECIFICATION: THREAD, POLYESTER, SPUN (20-FEB-1991) [S/S BY A-A-59989]., This specification covers one type of thread made of spun, cut staple polyester fibers for machine sewing.