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 5950-00-912-5196
NSN 6320-01-449-1014
NSN 5935-00-139-3210
NSN 5935-01-252-9217
NSN 2925-01-020-5099
NSN 6135-01-633-8502
NSN 6650-01-542-4137
NSN 6105-01-100-3129
NSN 5985-01-550-2487
NSN 6145-00-941-2357
NSN 7035-00-941-4949
NSN 5855-01-385-6586