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 5835-00-874-1085
NSN 4140-01-432-0292
NSN 6150-00-251-5697
NSN 5910-01-283-3041
NSN 5935-00-919-2669
NSN 6105-01-206-3352
NSN 5990-01-387-3820
NSN 5945-00-931-7632
NSN 5999-01-485-9650
NSN 5985-01-262-7790
NSN 5930-01-213-4117
NSN 5930-01-141-7740