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 5945-01-232-0916
NSN 5920-01-213-0379
NSN 5895-01-466-4780
NSN 5945-00-338-1387
NSN 5985-01-323-7236
NSN 6130-01-366-5690
NSN 5985-01-431-7775
NSN 5895-00-643-3980
NSN 6220-00-856-3583
NSN 6240-01-633-9357
NSN 6150-00-827-0081
NSN 5935-01-377-2601