Spring actuated butterfly damper controlled by external knob
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 6610-00-511-6201
NSN 5975-01-442-1827
NSN 5935-01-473-2820
NSN 5998-01-138-1597
NSN 5910-00-079-5348
NSN 2925-01-519-3221
NSN 5975-01-263-8420
NSN 5935-01-570-9712
NSN 6650-00-641-6139
NSN 6110-01-065-0232
NSN 6620-01-258-7005
NSN 6610-01-224-7247