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 5855-01-171-2818
NSN 7035-00-163-6221
NSN 5855-00-004-0904
NSN 5910-01-415-5023
NSN 5960-00-699-8146
NSN 5990-01-355-3845
NSN 6320-00-483-0451
NSN 6320-00-405-2348
NSN 6220-00-595-6954
NSN 5925-01-353-9106
NSN 5855-00-688-9954
NSN 5935-01-233-9432