Tube has 90 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 5855-01-191-3404
NSN 7035-00-445-9657
NSN 7035-01-187-0266
NSN 6220-01-560-9909
NSN 5990-01-052-5970
NSN 6240-01-296-3975
NSN 6105-01-363-5281
NSN 2925-00-964-7128
NSN 4140-00-246-4969
NSN 5855-00-138-2386
NSN 5985-01-593-8954
NSN 6620-00-580-3499