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 6685-00-192-8880
NSN 6610-01-431-8575
NSN 5998-01-016-9781
NSN 6320-01-089-9086
NSN 5920-01-223-3734
NSN 5999-01-487-9424
NSN 6240-01-003-8666
NSN 5998-01-415-0965
NSN 5985-00-988-1619
NSN 5905-00-003-8785
NSN 5915-00-232-0590
NSN 7035-01-143-3573