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 7035-01-509-1959
NSN 5975-01-474-9253
NSN 5945-00-789-8596
NSN 5920-00-723-4554
NSN 7035-01-132-7209
NSN 5950-01-012-3097
NSN 5835-01-118-3677
NSN 6150-01-188-7317
NSN 5925-01-500-1352
NSN 5945-01-631-0175
NSN 6135-00-951-3426
NSN 7035-01-534-9388