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 2925-00-679-8131
NSN 5990-01-347-6080
NSN 5910-00-446-1957
NSN 5965-00-217-2476
NSN 6110-01-632-6864
NSN 6105-01-149-0059
NSN 6685-00-876-3167
NSN 5925-00-321-8040
NSN 5975-01-608-2557
NSN 5835-01-249-0275
NSN 5965-00-370-3855
NSN 5930-00-554-1064