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 5999-00-984-4732
NSN 5935-00-027-1341
NSN 5935-00-366-1789
NSN 5985-01-406-0172
NSN 5990-01-452-0911
NSN 5985-01-149-5342
NSN 6105-00-339-8366
NSN 5985-01-084-1634
NSN 5915-01-215-7405
NSN 6320-00-646-3311
NSN 6150-01-487-3374
NSN 5910-01-565-8034