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 5965-01-162-8689
NSN 5999-01-103-1988
NSN 5965-01-429-0881
NSN 5915-01-576-9773
NSN 5930-00-293-8197
NSN 5930-01-331-0907
NSN 2925-01-144-7106
NSN 5950-01-140-0688
NSN 6105-00-392-1919
NSN 6130-01-587-8480
NSN 5920-01-107-9062
NSN 6105-01-455-3721