11.120 in.Lg;
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 6645-01-253-1950
NSN 5975-00-036-5753
NSN 6105-01-390-0450
NSN 5855-01-634-0259
NSN 5905-01-005-1276
NSN 5975-01-398-9128
NSN 5998-01-086-3293
NSN 6620-00-080-2847
NSN 6145-00-088-8463
NSN 6130-00-176-1664
NSN 5990-00-724-4375
NSN 5990-01-651-0170