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 5945-01-273-9790
NSN 6220-01-381-1793
NSN 6610-01-514-7181
NSN 6650-00-754-2276
NSN 6620-01-481-1358
NSN 7035-01-263-5463
NSN 6610-01-227-7221
NSN 5935-01-529-6459
NSN 6240-01-370-5818
NSN 6110-01-421-4449
NSN 6320-00-456-2092
NSN 5920-01-123-2821