4 inches long
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 5895-01-027-1660
NSN 5945-01-398-9559
NSN 6105-01-381-7242
NSN 5855-00-757-5149
NSN 5915-01-149-3524
NSN 5965-01-064-7496
NSN 5950-01-301-4824
NSN 6610-01-354-3087
NSN 6610-00-830-6946
NSN 6150-01-373-2685
NSN 6320-00-394-8458
NSN 5920-01-644-7974