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 5996-00-064-1220
NSN 6645-01-432-0052
NSN 5999-01-222-7207
NSN 5945-01-415-6049
NSN 5935-01-482-7183
NSN 5975-01-282-3453
NSN 5905-01-323-3774
NSN 6105-00-504-0377
NSN 6650-00-760-1385
NSN 5925-01-471-9700
NSN 5960-01-399-4327
NSN 5990-00-078-3182