No other part numbers with same form, fit, and function found.
A device used to prevent passage of flame through a ventilating duct while air is flowing.
NSN 6685-01-080-1197
NSN 6130-01-076-2948
NSN 6650-01-037-1948
NSN 6320-00-036-3688
NSN 5996-00-185-9376
NSN 6645-00-922-0886
NSN 6645-00-752-2939
NSN 6110-00-986-8993
NSN 5960-01-335-1622
NSN 5925-00-879-5108
NSN 7035-01-317-4227
NSN 5905-01-095-0323