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 6645-00-780-5260
NSN 5935-00-120-1274
NSN 6130-01-228-5337
NSN 4140-00-751-1694
NSN 5920-01-585-4209
NSN 5945-00-158-8773
NSN 5998-00-076-7462
NSN 5950-01-089-7934
NSN 6105-01-508-7921
NSN 5990-01-393-4808
NSN 5895-01-537-0718
NSN 2925-01-397-2495