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 6320-01-220-2264
NSN 6135-01-434-6308
NSN 5920-01-596-7516
NSN 5835-01-378-6804
NSN 5915-00-683-3399
NSN 6240-01-122-0307
NSN 5925-00-963-6962
NSN 7035-01-035-8987
NSN 5920-01-593-9962
NSN 5999-01-555-8668
NSN 6145-01-472-6702
NSN 5950-00-518-1674