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 6320-01-029-4220
NSN 5990-01-076-8901
NSN 5935-00-466-9825
NSN 6650-01-495-0995
NSN 5950-01-314-5431
NSN 6105-01-496-9431
NSN 4140-01-056-4453
NSN 5985-00-247-3414
NSN 6105-01-202-5744
NSN 6650-01-044-9860
NSN 6105-01-044-3404
NSN 7035-01-485-5114