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 5910-00-011-8821
NSN 5925-00-205-2767
NSN 5985-01-634-0635
NSN 5905-00-942-4974
NSN 5990-01-481-3080
NSN 6685-01-222-0141
NSN 4140-01-013-5797
NSN 5975-00-583-2960
NSN 6135-00-050-7189
NSN 6240-01-258-6298
NSN 5945-01-157-7106
NSN 4140-01-407-1139