Opp -113
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 6620-01-275-2781
NSN 5975-01-542-5825
NSN 5835-00-198-4936
NSN 6130-00-601-6301
NSN 5905-01-326-3326
NSN 5930-01-005-5046
NSN 5930-00-694-5487
NSN 6240-00-471-3345
NSN 6320-00-405-2348
NSN 5996-00-710-5037
NSN 6610-01-511-0982
NSN 6105-00-519-0941