B-1b aircraft; 4.000 in. Id by 0.500 in. Wall thk by 24.000 in. Lg
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 5935-01-192-5278
NSN 5835-01-100-3265
NSN 5925-01-371-0179
NSN 5999-01-334-2145
NSN 6145-00-022-0818
NSN 6620-01-127-0049
NSN 6645-01-651-2743
NSN 5935-01-332-3115
NSN 6685-01-383-7499
NSN 5930-01-432-1143
NSN 5920-01-336-8998
NSN 5945-00-639-9848