Conforms to mil-h-16235c, 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 5915-00-867-5421
NSN 5920-00-765-2867
NSN 4140-01-113-4196
NSN 5965-00-652-5661
NSN 5960-01-388-1988
NSN 5920-01-602-2627
NSN 5920-01-444-9935
NSN 6685-01-387-1900
NSN 6650-00-116-7439
NSN 5945-01-157-9781
NSN 5930-00-170-6748
NSN 5925-01-394-3725