Fiberglass with steel covering; lockheed dwg. 351439
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 6645-01-362-2587
NSN 7035-01-487-6481
NSN 6620-00-850-3365
NSN 5925-01-023-2481
NSN 6645-01-218-5234
NSN 6320-00-553-8427
NSN 6135-01-185-3614
NSN 6145-01-433-6858
NSN 5975-01-242-3615
NSN 5998-00-894-4866
NSN 6135-00-932-3136
NSN 5855-01-355-5521