Altered or selected item
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 6610-00-883-5160
NSN 6685-00-805-8012
NSN 2925-01-163-6716
NSN 6110-01-084-8217
NSN 5998-01-345-3103
NSN 5960-01-515-4791
NSN 5965-01-150-1920
NSN 5998-00-148-9718
NSN 5895-01-026-9002
NSN 6135-00-078-9931
NSN 6240-01-620-7401
NSN 5975-00-839-7304