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 7035-00-064-7008
NSN 5999-01-222-8741
NSN 5855-00-832-9341
NSN 5920-01-386-5798
NSN 6130-01-541-8670
NSN 7035-01-145-5059
NSN 5925-00-915-8865
NSN 5835-01-589-4735
NSN 6220-01-629-6105
NSN 6620-01-083-4672
NSN 5950-00-125-5055
NSN 6610-00-299-1844