Tube has 60 fins per ft., conforms to mil-h-16235c
A heat transferring unit utilizing a separate source of steam or hot water as the heat transfer medium. It consists of finned parallel tubes joined together by a header or headers and is designed for installation in the ducts of a forced air circulating system. It may be provided with a flanged outer casing to facilitate mounting of the unit in planned or existing duct work. Circulation of the heated air is achieved by use of a blower or fan not integral with the heating unit.
Classification: Air heaters and hot air distributors, not electrically heated, incorporating a motor-driven fan or blower, and parts thereof, of iron or steel
NSN 5915-00-862-4771
NSN 6610-01-094-4524
NSN 6685-00-169-6505
NSN 5945-00-542-3569
NSN 6220-01-561-3046
NSN 6650-00-322-6140
NSN 6620-01-104-5758
NSN 5920-01-332-4943
NSN 5895-01-399-7098
NSN 5905-01-084-9138
NSN 5855-00-058-1293
NSN 5945-01-472-1956