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 6320-01-384-7079
NSN 5910-00-085-5818
NSN 6610-01-078-9238
NSN 6240-01-550-1178
NSN 6220-01-320-0602
NSN 2925-01-291-9997
NSN 2925-01-027-1293
NSN 2925-00-997-1792
NSN 6240-01-441-3606
NSN 6105-00-807-8986
NSN 6145-01-035-5952
NSN 6320-01-495-0512