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 5895-00-007-2851
NSN 6650-01-467-8818
NSN 4140-00-913-4209
NSN 6105-01-182-2913
NSN 5930-01-031-7149
NSN 6105-01-047-3490
NSN 5920-01-534-6495
NSN 5895-01-317-4725
NSN 6320-01-330-8054
NSN 5975-00-357-6136
NSN 5965-01-537-0023
NSN 6105-01-319-3984