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 5855-01-497-0467
NSN 6645-01-092-4733
NSN 6650-01-115-7981
NSN 5905-01-624-5496
NSN 2925-00-569-2981
NSN 5996-00-548-3889
NSN 5999-01-058-2832
NSN 5990-00-552-9365
NSN 4140-01-085-4965
NSN 5999-01-541-4767
NSN 6685-01-474-0154
NSN 5835-01-552-8365