Cognizant service: navy;
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 6645-00-269-2764
NSN 6130-01-485-5022
NSN 6220-01-621-6888
NSN 5855-01-373-7538
NSN 6110-00-432-4417
NSN 5915-01-406-3165
NSN 5950-01-294-6410
NSN 5930-01-421-3329
NSN 5950-01-316-5349
NSN 5835-00-905-7165
NSN 4140-01-262-4256
NSN 5920-00-052-7172