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 5915-01-476-2892
NSN 4140-01-270-9624
NSN 6610-01-287-9814
NSN 6220-00-189-6561
NSN 6105-00-196-4957
NSN 5945-01-581-6165
NSN 2925-01-090-2391
NSN 5925-01-398-0517
NSN 6130-01-322-8507
NSN 5998-01-482-3304
NSN 5945-01-478-9153
NSN 6145-01-026-5519