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 6130-01-656-8336
NSN 5985-00-236-6006
NSN 6220-01-360-9659
NSN 5920-01-400-0791
NSN 5996-00-951-0074
NSN 6240-01-492-5045
NSN 5855-01-264-8599
NSN 5998-01-207-5595
NSN 7035-00-104-7613
NSN 6110-01-316-5255
NSN 5895-01-043-3871
NSN 2925-00-215-4954