Tube has 60 fins per ft
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 6130-01-420-6617
NSN 5925-01-305-1965
NSN 5965-01-631-5181
NSN 7035-00-155-9513
NSN 5945-01-261-7849
NSN 6135-00-985-7887
NSN 5998-00-156-8572
NSN 5965-01-058-1414
NSN 5985-01-363-8435
NSN 5835-01-050-7882
NSN 6240-01-129-1688
NSN 6220-01-283-3729