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 6145-01-550-3796
NSN 6620-01-259-5944
NSN 5975-00-943-6766
NSN 6105-01-243-0122
NSN 5835-00-187-1481
NSN 6130-01-079-2844
NSN 5990-01-400-3299
NSN 6240-01-652-9111
NSN 5835-01-606-8768
NSN 5960-01-586-2954
NSN 6150-01-661-0672
NSN 5930-01-579-4549