Two blades
No other part numbers with same form, fit, and function found.
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 6620-01-481-0637
NSN 6320-01-352-5653
NSN 5965-00-246-4767
NSN 6130-01-519-2930
NSN 4140-00-128-8072
NSN 5998-00-149-1396
NSN 5910-00-733-0326
NSN 5920-01-312-4452
NSN 5985-01-024-9640
NSN 6110-00-886-3210
NSN 6130-01-189-9140
NSN 6320-01-116-3980