Tube has 60 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 5965-01-162-8689
NSN 5895-00-900-5449
NSN 6645-01-555-4356
NSN 5855-00-797-8217
NSN 5960-00-139-3204
NSN 5935-01-254-0198
NSN 4140-00-983-8048
NSN 5998-00-188-5349
NSN 6220-01-149-4177
NSN 6645-01-482-9704
NSN 5945-00-150-3034
NSN 6135-01-498-1498