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.
Classification: Insulation products of glass fibers
NSN 6130-01-590-9747
NSN 5999-00-695-0339
NSN 6685-01-350-2159
NSN 5960-01-308-6421
NSN 5960-00-393-2505
NSN 5855-00-231-7790
NSN 2925-00-020-7524
NSN 5855-00-237-4088
NSN 5915-01-645-6170
NSN 6650-01-023-2698
NSN 6240-00-708-2083
NSN 6135-00-027-3914