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 6130-01-102-1745
NSN 6650-01-333-9155
NSN 5985-01-416-4333
NSN 5998-01-167-9000
NSN 5920-00-901-4731
NSN 5910-00-320-8302
NSN 5999-01-573-0668
NSN 6220-01-079-7772
NSN 5855-01-374-9116
NSN 5835-01-123-8305
NSN 6105-01-117-6566
NSN 6645-01-209-0264