Tube has 90 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 5998-01-020-7848
NSN 6650-00-197-7563
NSN 5835-01-107-8600
NSN 5960-01-515-4791
NSN 5910-01-046-9416
NSN 5990-01-407-6615
NSN 4140-00-058-0044
NSN 5998-00-854-0880
NSN 6105-00-864-2819
NSN 6130-01-321-5296
NSN 5996-01-371-2958
NSN 4140-01-605-1706