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 2925-01-463-8856
NSN 6220-01-003-9126
NSN 5920-01-294-6623
NSN 6130-01-499-8679
NSN 5990-01-503-0194
NSN 5920-00-791-2949
NSN 5975-01-449-1798
NSN 6110-01-243-4200
NSN 5835-01-236-6514
NSN 5925-01-644-3898
NSN 5935-00-871-9024
NSN 2925-01-298-2674