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 4140-01-015-0124
NSN 6135-00-635-9187
NSN 5915-00-217-6517
NSN 6145-01-601-5858
NSN 5975-01-370-5279
NSN 6320-01-407-8663
NSN 5925-00-964-9654
NSN 5975-01-499-2690
NSN 6145-01-283-4293
NSN 5925-01-276-3749
NSN 5920-01-550-1810
NSN 5985-01-222-4206