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 5996-00-121-2914
NSN 5895-01-393-4731
NSN 5996-01-560-2777
NSN 6610-01-312-6906
NSN 5965-00-194-9875
NSN 5975-01-578-3496
NSN 6240-01-295-1750
NSN 5920-01-083-3432
NSN 5960-00-835-3005
NSN 2925-00-592-2819
NSN 5935-00-642-5798
NSN 5915-01-204-3168