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 5920-01-235-3843
NSN 6105-00-707-5962
NSN 5990-01-106-3786
NSN 6320-00-036-3688
NSN 5999-01-641-2850
NSN 7035-01-444-9249
NSN 5999-01-113-1653
NSN 6620-00-008-3280
NSN 2925-01-567-8027
NSN 6650-01-007-9588
NSN 5855-01-286-9928
NSN 5965-01-648-3736