MIL-H-3780, MILITARY SPECIFICATION, HANGER & TRACK SETS, HORIZONTAL SLIDING DOOR-(5 MAR 1976) [S/S BY BHMA A156.14]

MIL-H-3780, MILITARY SPECIFICATION, HANGER & TRACK SETS, HORIZONTAL SLIDING DOOR-(5 MAR 1976) [S/S BY BHMA A156.14]., This specification covers steel tracks, hangers, brackets, and hardware for horizontal sliding doors.