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 6150-00-495-6008
NSN 6150-00-707-8804
NSN 6220-01-372-4094
NSN 5999-01-199-7776
NSN 5930-01-272-3464
NSN 5965-00-493-6008
NSN 5985-01-036-3461
NSN 6650-00-456-1736
NSN 5965-00-043-3463
NSN 5998-01-177-3763
NSN 6685-00-840-6317
NSN 5855-00-482-9876