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 6135-00-078-9931
NSN 5920-01-051-0090
NSN 5855-01-258-5161
NSN 4140-00-766-2225
NSN 6220-00-828-5282
NSN 6645-01-351-6900
NSN 6105-00-149-7956
NSN 6150-01-353-6207
NSN 6130-01-483-4748
NSN 6610-01-468-6880
NSN 5920-00-916-7978
NSN 5895-01-187-7898