Opp -113
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 5915-01-322-8226
NSN 5895-01-079-8667
NSN 5945-00-356-6471
NSN 6105-01-318-2513
NSN 5990-00-995-6071
NSN 6620-01-647-1393
NSN 5910-01-010-4626
NSN 6240-00-208-2379
NSN 5925-00-083-8486
NSN 6610-01-464-3037
NSN 6620-01-226-8639
NSN 6105-01-417-2174