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 5998-01-461-2003
NSN 5950-01-358-4316
NSN 5835-01-090-0784
NSN 5996-01-544-7773
NSN 5920-01-645-7314
NSN 5935-01-329-8292
NSN 5915-01-431-6951
NSN 5895-01-113-7224
NSN 5975-01-536-8304
NSN 5975-01-451-4799
NSN 5920-01-135-9261
NSN 6150-00-911-9804