4.000 in.Lg, 1/2 shell for 2.000 in.Dia tube, tg 6000 insulation, 0.250 in.Thk, al foil cover;
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 5999-01-391-4996
NSN 5905-00-838-9475
NSN 7035-01-390-1132
NSN 5930-00-586-8361
NSN 5965-00-578-1438
NSN 6130-01-099-9800
NSN 6150-00-959-1911
NSN 6110-01-094-3907
NSN 5905-01-519-2725
NSN 5910-01-489-0966
NSN 6240-01-271-6230
NSN 5905-01-251-3874