Tube has 36 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 5930-01-258-9644
NSN 5930-00-910-7690
NSN 5960-01-415-3574
NSN 5930-01-482-0584
NSN 5920-01-446-4524
NSN 5965-00-581-5577
NSN 6110-00-136-2331
NSN 5915-01-445-6577
NSN 2925-00-185-1618
NSN 5920-01-147-6860
NSN 6130-01-445-6165
NSN 6220-00-099-9192