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 5945-00-752-5929
NSN 6105-01-450-9402
NSN 6145-01-300-6839
NSN 6240-01-501-1267
NSN 6650-01-449-2334
NSN 4140-00-648-3303
NSN 5945-01-257-2110
NSN 5920-01-089-7903
NSN 5895-01-458-0846
NSN 6105-01-371-2458
NSN 6620-01-633-5142
NSN 6135-01-010-0891