0.500 in.Thk;
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 6650-01-068-5021
NSN 5935-01-433-1914
NSN 6650-00-231-7843
NSN 6130-01-301-4837
NSN 5996-01-097-9320
NSN 6220-00-947-3495
NSN 6650-01-071-4514
NSN 5999-01-272-8479
NSN 5950-01-128-1419
NSN 5990-00-950-6146
NSN 5910-00-955-5764
NSN 6145-01-399-1158