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 5998-01-047-0672
NSN 5905-01-075-3214
NSN 5930-01-617-7692
NSN 5975-00-152-1147
NSN 5905-01-425-6120
NSN 5920-01-581-4757
NSN 6145-01-612-9893
NSN 5835-00-286-5432
NSN 5945-01-555-8059
NSN 5895-00-858-6464
NSN 6105-01-366-6917
NSN 5945-00-232-3260