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 6650-01-370-5265
NSN 6130-01-160-8430
NSN 6685-01-140-5012
NSN 6105-01-317-3657
NSN 5835-01-224-2792
NSN 7035-01-555-1088
NSN 6130-00-764-5840
NSN 6650-00-001-2472
NSN 4140-00-937-8117
NSN 5910-01-212-0815
NSN 6685-01-152-2846
NSN 5950-01-509-5530