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 5996-01-633-7979
NSN 6610-00-264-0961
NSN 6130-01-488-5059
NSN 5998-00-248-6439
NSN 7035-01-162-5230
NSN 6130-01-252-7984
NSN 6645-01-444-3016
NSN 6610-00-107-1944
NSN 6320-01-198-4024
NSN 4140-00-421-4555
NSN 5945-01-098-2150
NSN 7035-01-182-1086