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 6645-01-633-1852
NSN 5935-00-554-0244
NSN 5935-00-398-1584
NSN 6105-00-349-0063
NSN 5960-00-611-1691
NSN 6150-01-443-7207
NSN 6105-01-381-7242
NSN 5950-00-071-2485
NSN 6685-01-057-9166
NSN 5945-01-481-1163
NSN 6650-00-973-9533
NSN 6610-01-284-6968