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 5910-01-217-9764
NSN 6130-01-122-8343
NSN 5935-01-357-2368
NSN 6240-01-476-5776
NSN 2925-01-426-3410
NSN 5920-00-350-9181
NSN 5945-01-571-5798
NSN 5905-01-038-1361
NSN 5905-01-194-9628
NSN 6130-00-719-7219
NSN 5915-00-221-2391
NSN 5935-00-892-3059