0.500 in.Thk;
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 5996-01-381-5313
NSN 5999-01-340-0548
NSN 5915-00-793-0227
NSN 6145-01-346-3931
NSN 5910-00-177-8291
NSN 6685-01-438-2068
NSN 5975-01-429-8609
NSN 5895-01-608-8485
NSN 2925-00-147-8150
NSN 2925-00-829-9082
NSN 5945-00-373-3755
NSN 6240-00-905-6050