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 5835-00-918-8169
NSN 5975-00-183-7693
NSN 5985-01-222-0940
NSN 6685-00-391-5747
NSN 6650-00-885-0330
NSN 6645-00-171-9639
NSN 6105-00-941-6493
NSN 5925-00-144-0482
NSN 5905-00-908-4123
NSN 5999-00-836-5380
NSN 6135-01-196-7399
NSN 6145-01-217-1949