0.250 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 5920-00-957-4898
NSN 6110-01-158-2900
NSN 6145-00-564-5591
NSN 6645-01-511-3272
NSN 6145-01-384-2519
NSN 5990-01-150-7443
NSN 5855-01-089-2248
NSN 7035-01-397-5009
NSN 5935-01-352-5126
NSN 6145-01-491-3722
NSN 5915-01-516-1746
NSN 6130-01-205-2640