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 5910-01-485-1118
NSN 5855-01-461-2741
NSN 5930-01-442-6314
NSN 6220-00-526-7639
NSN 6130-00-491-2060
NSN 5998-00-968-9583
NSN 2925-00-033-4621
NSN 6610-00-425-7684
NSN 2925-01-515-7026
NSN 6620-00-137-0332
NSN 6135-00-377-9165
NSN 5920-01-317-3506