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 7035-01-010-4257
NSN 5985-00-436-1052
NSN 5950-01-052-5173
NSN 7035-00-870-0290
NSN 5998-01-011-6819
NSN 6110-01-167-8906
NSN 6130-01-630-3635
NSN 5895-00-980-2432
NSN 5925-01-581-0625
NSN 5999-00-964-8968
NSN 6620-01-483-1138
NSN 6220-01-106-3215