Aircraft f-4
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.
NSN 5975-00-364-6919
NSN 5960-00-683-7476
NSN 6240-01-532-5978
NSN 6685-01-324-7920
NSN 6685-01-051-3794
NSN 6650-00-095-6490
NSN 6650-00-331-2232
NSN 6620-01-265-2887
NSN 5910-00-401-1202
NSN 5910-00-577-6865
NSN 6620-01-332-0623
NSN 5915-00-472-6602