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 6620-01-230-0197
NSN 6105-01-617-0065
NSN 5910-01-633-9963
NSN 5999-00-171-8858
NSN 5855-01-263-7669
NSN 6145-00-968-6603
NSN 6685-00-073-3469
NSN 5895-00-628-2078
NSN 5950-01-492-5660
NSN 5855-00-494-9581
NSN 5990-01-024-9659
NSN 5960-01-157-7009