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 6240-00-689-8504
NSN 6320-01-255-2096
NSN 5985-01-145-3402
NSN 5855-01-469-6123
NSN 4140-00-816-8820
NSN 6610-00-292-9895
NSN 5999-00-243-0212
NSN 5960-00-300-2358
NSN 6105-00-932-0229
NSN 6145-00-335-1336
NSN 5935-01-545-4236
NSN 5945-00-797-6321