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 6110-01-017-6478
NSN 5855-00-149-0766
NSN 5999-01-375-3034
NSN 6145-01-379-2695
NSN 5895-00-816-9763
NSN 6650-01-661-2625
NSN 5990-00-432-0649
NSN 6240-01-566-4629
NSN 4140-00-777-5552
NSN 5855-01-278-8922
NSN 5990-00-736-8778
NSN 5950-00-540-9283