HH-P-31E, FEDERAL SPECIFICATION: PACKING MATERIAL, ASBESTOS, METALLIC CLOTH AND TAPE (11 JUL 1983)

HH-P-31E, FEDERAL SPECIFICATION: PACKING MATERIAL, ASBESTOS, METALLIC CLOTH AND TAPE (11 JUL 1983)., This specification covers fibrous glass metallic cloth and tape-packing for boiler casing access openings or insulation lagging pads and heavyweight, rubber treated fibrous glass cloth and tape for pipe flange joint gaskets.