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 6135-01-367-6203
NSN 6135-00-900-2139
NSN 2925-00-845-1480
NSN 5950-01-607-7055
NSN 5945-01-056-4142
NSN 5965-00-841-9195
NSN 6240-01-188-7282
NSN 6320-01-473-9024
NSN 6620-01-466-4436
NSN 5999-00-938-1550
NSN 6110-01-252-8516
NSN 2925-01-350-8372