MIL-T-43548C, MILITARY SPECIFICATION: THREAD, POLYESTER CORE; COTTON-, RAYON-, OR POLYESTER-COVERED (30-SEP-1986) [S/S BY A-A-50199]

MIL-T-43548C, MILITARY SPECIFICATION: THREAD, POLYESTER CORE; COTTON-, RAYON-, OR POLYESTER-COVERED (30-SEP-1986) [S/S BY A-A-50199]., This document covers cotton-covered, rayon-covered, and polyester-covered threads with polyester cores.