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 5935-00-246-5280
NSN 5930-01-421-8277
NSN 5945-01-463-4210
NSN 6610-01-156-0810
NSN 6150-00-318-8209
NSN 5930-01-024-8160
NSN 5915-00-906-2039
NSN 6145-01-166-8029
NSN 5965-00-901-6203
NSN 6240-00-334-6766
NSN 5965-01-603-0118
NSN 6220-01-207-8068