11.120 in.Lg;
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 5920-01-093-8458
NSN 5935-01-345-0945
NSN 6135-01-490-7704
NSN 6240-01-532-3744
NSN 6220-01-291-9356
NSN 5905-01-211-5374
NSN 5965-01-564-8876
NSN 5998-00-969-9869
NSN 5990-00-985-1334
NSN 7035-01-434-6134
NSN 5965-00-734-5053
NSN 6645-00-832-1609