MIL-B-6362F (AMENDMENT 1), MILITARY SPECIFICATION: BOOTS, EXTREME COLD WEATHER, N-1B (07 JUN 1978)
MIL-B-6362F (AMENDMENT 1), MILITARY SPECIFICATION: BOOTS, EXTREME COLD WEATHER, N-1B (07 JUN 1978)., This specification covers one type of heavy rubber-soled boot which is designated N-1B.