Spring actuated butterfly damper controlled by external knob
A cast iron or sheet metal plate designed to be installed in a boiler, heater, stove, or furnace flue pipe to control the draft, and/or in an air duct to control the passage of air. Excludes valve, butterfly.
NSN 6320-01-157-9076
NSN 5930-01-157-9602
NSN 5945-00-280-1567
NSN 5835-01-453-8935
NSN 5945-01-634-0588
NSN 6620-01-544-4857
NSN 5985-00-899-6164
NSN 5985-01-239-4039
NSN 6145-01-612-4981
NSN 5960-01-058-1074
NSN 5935-01-174-0685
NSN 6145-00-280-8488