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 6685-01-377-4716
NSN 5965-00-815-2525
NSN 6220-01-446-6430
NSN 6685-01-441-9063
NSN 5930-00-597-2987
NSN 6610-01-439-2651
NSN 6645-01-371-1632
NSN 5935-01-433-2268
NSN 5960-00-734-1828
NSN 5935-00-492-2946
NSN 5965-00-431-2492
NSN 5910-00-751-9581