Tube has 60 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 6220-00-810-9563
NSN 5945-01-631-0175
NSN 5960-01-139-3136
NSN 5999-01-458-5702
NSN 6105-01-389-6451
NSN 6105-00-045-7930
NSN 5905-00-930-5836
NSN 5915-01-139-3604
NSN 5925-00-437-2854
NSN 5990-01-318-3238
NSN 5920-00-764-1852
NSN 6105-01-362-0548