12 inches olng
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 6105-01-058-7351
NSN 6135-01-079-7852
NSN 6150-01-615-7972
NSN 4140-01-610-1017
NSN 5950-01-300-2269
NSN 5910-01-005-4967
NSN 2925-01-510-9378
NSN 6130-00-126-5960
NSN 6130-00-675-0106
NSN 5996-00-925-1953
NSN 4140-00-316-5383
NSN 5905-01-537-0402