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 6650-01-525-7370
NSN 6320-01-551-3553
NSN 6610-00-134-5625
NSN 6645-00-126-0286
NSN 5905-00-204-7796
NSN 5998-00-775-2173
NSN 5910-01-435-4562
NSN 5935-00-539-4699
NSN 6650-01-258-5871
NSN 5950-00-900-1394
NSN 6145-01-259-0308
NSN 5945-01-435-5874