An item composed of one or more materials, molded, compressed, and/or baked into a rigid covering of irregular shapes and sizes. it is designed to cover air ducts and/or air duct fittings used in air conditioning, heating, cooling, pressurizing and de-icing systems to restrict the dissipation of heat. it may completely or partially encase the item for which designed. it may be furnished with or without fillers, cement, and/or separate or attached accessories for installation, (excluding flexible air duct covering and rigid pipe and pipe fitting coverings used in construction and building materials). Excludes insulation blanket, thermal, aircraft; insulation pipe fitting covering, thermal; and insulation sleeving, thermal.
NSN 5910-01-170-8267
NSN 5895-01-098-8432
NSN 2925-01-579-1010
NSN 6645-01-008-2720
NSN 2925-01-041-8201
NSN 5950-01-570-5389
NSN 6645-01-501-0576
NSN 6645-00-641-3202
NSN 6620-01-128-3053
NSN 6320-00-994-0179
NSN 6135-01-397-2170
NSN 5996-00-169-9323