19.710 in.Lg, 3.000 in.Id, 0.380 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 5930-01-400-6126
NSN 5930-00-903-4984
NSN 5998-01-368-0483
NSN 6685-00-141-4300
NSN 6105-01-275-2768
NSN 6130-01-113-7566
NSN 6220-01-144-9740
NSN 6135-01-069-2482
NSN 6240-00-603-6662
NSN 5905-01-050-7449
NSN 5999-00-310-4766
NSN 2925-01-315-0816