Altered or selected item
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 5855-01-454-6956
NSN 5945-00-633-7620
NSN 5910-00-246-9417
NSN 6320-01-029-4220
NSN 5895-01-429-9999
NSN 6610-01-010-3915
NSN 5990-01-029-0868
NSN 5925-01-005-3700
NSN 5855-01-375-6690
NSN 4140-00-790-4691
NSN 6220-00-333-8521
NSN 5999-01-480-1314