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 2925-01-495-1178
NSN 5915-01-604-7376
NSN 6620-00-278-7313
NSN 5855-00-221-9435
NSN 5910-01-618-6407
NSN 6650-01-433-7002
NSN 5950-01-113-6846
NSN 5925-00-780-2574
NSN 5945-01-553-3644
NSN 6645-01-462-2101
NSN 6150-01-086-6512
NSN 5960-00-279-3536