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 6620-00-236-7148
NSN 5975-01-456-7061
NSN 5930-01-359-9053
NSN 5960-00-020-5196
NSN 6105-00-187-6070
NSN 5975-00-982-3288
NSN 5945-01-034-2108
NSN 5925-01-566-5419
NSN 5998-01-506-0232
NSN 6320-00-731-6134
NSN 6650-00-287-5868
NSN 5960-01-142-1995