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 5945-01-260-7974
NSN 6685-01-634-0611
NSN 5835-00-494-3710
NSN 5950-00-149-8597
NSN 5965-01-581-4398
NSN 6320-01-379-1182
NSN 5985-01-501-6887
NSN 6105-01-479-8988
NSN 5910-00-920-9810
NSN 6685-01-163-9556
NSN 6685-00-813-9653
NSN 6220-01-067-8142