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 6650-01-247-6623
NSN 6240-00-839-7440
NSN 6610-01-381-3181
NSN 5990-01-177-2838
NSN 5960-01-438-0245
NSN 7035-00-205-1932
NSN 6135-01-222-5464
NSN 5855-01-532-0402
NSN 6105-00-431-1743
NSN 5905-01-407-5528
NSN 6645-01-388-0391
NSN 5945-00-407-8289