Fsc application data: aircraft auxiliary power unit;
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 6685-01-461-6992
NSN 5930-00-278-7731
NSN 5985-01-327-5081
NSN 6110-01-156-7524
NSN 6220-01-199-5356
NSN 6685-01-449-1451
NSN 5910-01-429-7647
NSN 5990-00-432-0649
NSN 6135-01-485-9082
NSN 5950-01-411-6227
NSN 5930-01-463-8744
NSN 5935-01-568-3985