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 5920-01-068-3135
NSN 5950-00-645-0793
NSN 5930-01-127-4480
NSN 5990-01-055-1523
NSN 6685-01-325-8945
NSN 5998-01-490-9801
NSN 5835-01-588-6533
NSN 5945-01-568-4159
NSN 5920-01-173-4108
NSN 6320-01-631-7828
NSN 6145-01-072-3352
NSN 5905-01-562-0172