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 6685-01-627-5126
NSN 6650-01-496-8962
NSN 5965-01-436-9507
NSN 5996-00-333-5182
NSN 5920-01-509-7772
NSN 5985-00-289-9862
NSN 5910-01-205-5007
NSN 5915-01-654-3204
NSN 6620-01-107-2965
NSN 5905-00-167-0625
NSN 7035-00-421-8710
NSN 5960-01-351-5074