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 5998-00-293-6286
NSN 5999-01-390-8927
NSN 6685-01-454-2380
NSN 5950-01-204-1335
NSN 5920-01-015-8227
NSN 7035-00-763-6180
NSN 5920-00-779-0827
NSN 5985-01-246-7736
NSN 6220-01-513-7789
NSN 5930-00-074-1430
NSN 6610-00-099-4096
NSN 5835-00-224-9148