Tube has 90 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 5930-00-430-6539
NSN 6130-01-615-3336
NSN 5950-01-154-5434
NSN 5895-01-598-0307
NSN 5935-01-337-2525
NSN 5835-01-241-1090
NSN 4140-01-579-9513
NSN 6320-00-931-4855
NSN 6130-00-673-8281
NSN 5998-00-611-0032
NSN 6105-01-074-5369
NSN 5855-00-548-4742