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 5975-01-447-9185
NSN 6135-00-708-0892
NSN 5905-00-574-2828
NSN 5905-00-918-3559
NSN 6150-01-428-9988
NSN 6145-01-120-8621
NSN 5945-01-136-7640
NSN 6320-01-352-5653
NSN 5945-01-352-5852
NSN 6110-01-184-3658
NSN 6645-00-650-3405
NSN 7035-01-573-5284