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 6110-01-258-1291
NSN 5945-01-644-1371
NSN 6150-00-706-8341
NSN 5910-00-941-5001
NSN 5925-00-925-2164
NSN 5915-00-312-2652
NSN 5915-00-491-2793
NSN 4140-01-263-9065
NSN 5905-01-467-9990
NSN 5925-01-155-8518
NSN 6135-00-377-9165
NSN 5990-01-164-8673