2.620 in.Id, 3.000 in.Lg, 0.380 in.Wall thk; heating system, acft;
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 5945-00-450-1649
NSN 5985-01-536-9900
NSN 6620-00-290-6505
NSN 6650-01-123-1091
NSN 5965-01-443-5490
NSN 5895-00-054-4759
NSN 5985-00-485-4924
NSN 6645-01-437-9017
NSN 6645-01-124-1584
NSN 4140-01-432-4027
NSN 6150-01-250-2772
NSN 5996-01-633-7979