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 5920-01-290-0677
NSN 5930-01-464-0429
NSN 5905-01-608-2266
NSN 5999-00-866-7210
NSN 5950-00-111-0506
NSN 5915-01-099-3676
NSN 5950-01-610-3181
NSN 6130-01-538-0387
NSN 6110-00-862-9137
NSN 5930-00-556-1181
NSN 6240-00-398-0740
NSN 5965-00-348-4165