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 6145-01-383-3897
NSN 5985-00-597-2966
NSN 5920-01-416-0616
NSN 6135-01-190-2628
NSN 6220-01-088-5915
NSN 6610-01-281-6036
NSN 6130-01-197-5214
NSN 5945-01-526-8795
NSN 6320-00-546-9249
NSN 5945-01-088-8071
NSN 6320-01-229-6479
NSN 6620-01-646-2751