Cognizant service: navy;
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 5935-01-062-0705
NSN 6110-01-072-2488
NSN 5925-01-094-8053
NSN 6105-00-137-9521
NSN 6105-01-100-1857
NSN 6620-01-600-7483
NSN 6110-01-034-1687
NSN 5990-01-093-3087
NSN 6145-01-514-0593
NSN 6105-00-561-7169
NSN 5925-01-078-6673
NSN 5920-00-767-0596