3.510 in. Approx lg, 1.760 in. Approx dia
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 6650-01-107-7553
NSN 5998-00-456-8874
NSN 5996-01-438-6544
NSN 2925-01-522-5631
NSN 6220-01-409-1585
NSN 5935-01-634-0668
NSN 5975-01-416-3359
NSN 6110-01-174-8137
NSN 5910-01-408-5201
NSN 5998-01-582-7832
NSN 5855-01-620-8837
NSN 5915-01-064-4220