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 5925-01-012-0764
NSN 5998-00-230-4811
NSN 5920-01-208-8794
NSN 4140-00-106-0117
NSN 6610-00-931-3655
NSN 6105-01-317-3332
NSN 5998-00-204-6346
NSN 2925-01-495-2690
NSN 6645-00-542-1734
NSN 5835-00-170-5238
NSN 5950-00-189-1433
NSN 5930-01-194-5767