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 6105-00-909-2146
NSN 7035-00-126-1899
NSN 6145-01-088-5445
NSN 5855-01-533-0996
NSN 5935-01-198-6309
NSN 5910-00-296-8816
NSN 5925-00-611-4120
NSN 5855-01-489-5808
NSN 5835-01-257-5342
NSN 6130-01-462-2425
NSN 6645-01-645-9117
NSN 5985-00-417-6246