Altered or selected item
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 5855-01-278-8922
NSN 5990-01-348-9829
NSN 6620-00-698-6700
NSN 5915-01-381-3739
NSN 5910-00-883-3290
NSN 4140-01-396-4025
NSN 5990-00-524-2293
NSN 5920-00-257-2950
NSN 6620-01-632-9143
NSN 6240-01-084-8637
NSN 6320-00-116-3658
NSN 5960-00-263-0106