Tube has 90 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 5835-00-160-7142
NSN 6150-01-390-7351
NSN 5905-00-144-8471
NSN 5935-01-532-7240
NSN 5935-01-139-6927
NSN 5835-01-200-7153
NSN 5985-00-760-6311
NSN 6145-01-278-6903
NSN 5950-01-237-2573
NSN 6135-01-444-6824
NSN 5895-01-518-9747
NSN 6145-01-366-7146