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 5990-00-754-2842
NSN 6105-01-456-4488
NSN 5935-01-024-9452
NSN 6130-01-491-9516
NSN 6620-01-147-8439
NSN 5998-00-064-4595
NSN 5920-01-579-2153
NSN 5910-00-885-8980
NSN 6650-01-604-9315
NSN 5915-00-005-2629
NSN 5925-01-542-7970
NSN 6150-01-374-6218