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 6105-01-584-8745
NSN 7035-01-173-1513
NSN 5920-01-245-8510
NSN 6685-00-504-1911
NSN 5905-00-551-4242
NSN 2925-01-143-4229
NSN 6110-01-241-3456
NSN 5998-00-524-2315
NSN 6150-01-195-6931
NSN 6620-01-516-6282
NSN 5975-00-432-9992
NSN 6135-01-454-4574