Tube has 36 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 5855-00-055-1579
NSN 4140-00-889-7990
NSN 6645-00-017-8252
NSN 5950-00-673-5539
NSN 5930-00-150-8635
NSN 6135-01-412-0404
NSN 5960-01-370-4285
NSN 6650-01-467-2355
NSN 6110-01-393-6992
NSN 6145-00-023-7010
NSN 5990-00-824-3207
NSN 4140-00-780-3557