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 5925-00-419-1950
NSN 6130-01-320-2630
NSN 6620-01-569-4621
NSN 5999-00-545-8801
NSN 6650-01-517-9452
NSN 6685-01-647-8461
NSN 5945-01-419-9870
NSN 6145-00-842-1952
NSN 5999-01-194-5728
NSN 5895-01-194-7650
NSN 6320-01-202-8761
NSN 4140-00-314-1025