Fiberglass layered between steel and aluminum
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 5975-01-507-6611
NSN 5835-01-150-6084
NSN 6240-01-281-7249
NSN 5930-01-541-1383
NSN 6135-01-408-9244
NSN 6105-01-323-7401
NSN 5935-01-452-7231
NSN 6105-01-328-5915
NSN 5999-01-481-3744
NSN 5855-00-937-7709
NSN 6620-00-286-5721
NSN 6130-01-454-2994