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 6610-00-585-1524
NSN 5975-01-502-6167
NSN 5990-01-532-0670
NSN 6110-00-402-7637
NSN 5975-01-550-4837
NSN 4140-01-531-2788
NSN 5975-01-092-5437
NSN 6685-01-549-9146
NSN 5895-01-279-1330
NSN 5895-01-091-0938
NSN 5990-01-016-4194
NSN 6620-01-257-6483