2.620 in.Id, 3.000 in.Lg, 0.380 in.Wall thk; heating system, acft;
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: Other parts of airplanes or helicopters for use in military aircraft (excludes propellers, rotors, undercarriages, and parts thereof)
NSN 5905-01-224-5617
NSN 6135-01-633-8502
NSN 6105-00-492-4702
NSN 6685-00-118-3625
NSN 7035-01-508-6447
NSN 5905-01-046-2552
NSN 2925-01-424-0235
NSN 5990-00-247-0975
NSN 5996-01-372-5063
NSN 5920-01-439-3790
NSN 6150-01-175-9040
NSN 6135-00-803-3012