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 5855-01-474-3325
NSN 5925-01-442-1517
NSN 6620-00-580-3499
NSN 6145-00-155-5297
NSN 6645-01-504-3394
NSN 5975-00-902-3578
NSN 5910-01-027-4297
NSN 6685-00-900-5428
NSN 5975-00-032-4641
NSN 2925-01-467-7672
NSN 6320-00-841-2279
NSN 5910-01-019-7359