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 5945-01-461-8494
NSN 5920-01-146-4503
NSN 5945-00-222-3744
NSN 6110-01-556-4364
NSN 6145-01-148-4488
NSN 6240-01-574-9304
NSN 5920-00-271-3217
NSN 6610-01-231-9283
NSN 5935-00-472-1919
NSN 5950-00-375-8284
NSN 5835-00-491-6075
NSN 6105-01-197-4905