0.500 in.Wall thk, 4.500 in.Lg, round with bell shape closure on one end, fiberglass with aluminum covering, 11.000 in.Dia; heating system, acft;
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 2925-01-455-2558
NSN 5965-01-433-1974
NSN 5950-01-145-4510
NSN 5985-00-171-5084
NSN 5925-00-208-5637
NSN 5895-00-562-2483
NSN 5999-01-546-5889
NSN 5910-00-119-1612
NSN 5930-00-100-1323
NSN 6135-00-110-1981
NSN 5925-00-240-3424
NSN 5945-01-020-3969