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.
Classification: Other parts of airplanes or helicopters for use in military aircraft (excludes propellers, rotors, undercarriages, and parts thereof)
NSN 6105-01-430-0127
NSN 5935-01-294-5781
NSN 6110-00-146-2114
NSN 5996-01-504-7033
NSN 5920-00-935-2275
NSN 6240-01-124-1829
NSN 2925-00-243-6841
NSN 6650-00-842-5463
NSN 6650-00-125-6560
NSN 5985-01-161-1975
NSN 6320-00-456-0836
NSN 5855-01-419-9429