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 6150-01-332-1899
NSN 6105-00-898-4619
NSN 5950-01-570-5389
NSN 5985-01-600-0740
NSN 5999-00-343-1896
NSN 6240-01-542-8886
NSN 5965-01-428-3348
NSN 5950-00-391-6963
NSN 5915-00-418-3849
NSN 6650-01-351-4544
NSN 5920-01-184-3195
NSN 6220-01-261-1198