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 5985-00-870-3030
NSN 6105-01-619-6796
NSN 6220-00-187-8569
NSN 6150-00-019-0974
NSN 6150-01-359-2637
NSN 6645-00-507-5544
NSN 5910-01-055-2019
NSN 6685-00-638-9261
NSN 5835-00-005-7909
NSN 6220-01-120-7436
NSN 6610-01-643-2315
NSN 2925-01-304-4567