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 5930-01-542-9030
NSN 5996-01-042-8554
NSN 5920-01-129-9638
NSN 5855-00-079-2370
NSN 4140-01-526-6874
NSN 6620-01-199-3261
NSN 6145-00-365-0121
NSN 5990-00-929-3216
NSN 5990-00-177-2924
NSN 6240-01-195-1750
NSN 6145-00-122-9517
NSN 6240-01-529-6375