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 4140-01-634-0330
NSN 5925-00-175-9349
NSN 5905-01-286-4681
NSN 6135-01-108-6057
NSN 6150-01-089-5909
NSN 7035-01-512-5396
NSN 5965-01-084-2385
NSN 6685-01-570-6106
NSN 5945-01-403-2800
NSN 6645-01-025-1002
NSN 5930-00-603-7102
NSN 5960-01-381-8475