MIL-I-2819D, MILITARY SPECIFICATION: INSULATION BLOCK, THERMAL (09-AUG-1963) [S/S BY MIL-PRF-2819]

MIL-I-2819D, MILITARY SPECIFICATION: INSULATION BLOCK, THERMAL (09-AUG-1963) [S/S BY MIL-PRF-2819]., This specification covers thermal insulation block for use on machinery and equipment at surface temperatures up to the limits for the classes specified.