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 5895-00-160-5006
NSN 6150-00-596-9882
NSN 5996-01-012-3267
NSN 5835-01-281-1655
NSN 5960-00-245-0163
NSN 5935-01-462-1533
NSN 5935-00-906-5989
NSN 6105-01-484-7319
NSN 6650-01-295-6059
NSN 5935-01-377-7619
NSN 5835-01-077-5371
NSN 5965-00-144-2543