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 6240-00-103-6646
NSN 5960-01-476-5686
NSN 6320-00-731-6134
NSN 6110-00-477-4558
NSN 5999-00-320-4342
NSN 6130-00-242-4829
NSN 6105-00-247-7228
NSN 6620-00-546-6071
NSN 6130-01-457-0690
NSN 5895-01-516-0972
NSN 5965-01-315-1916
NSN 5945-01-375-0545