Tube has 60 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 6130-01-609-1713
NSN 6110-01-467-0459
NSN 6620-01-067-8336
NSN 5920-01-147-5652
NSN 6220-01-449-2014
NSN 6320-01-098-2503
NSN 5905-01-007-4657
NSN 6685-01-198-3650
NSN 7035-00-946-2642
NSN 6685-00-387-9654
NSN 6220-01-391-7705
NSN 5935-01-247-6780