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 5925-00-361-1943
NSN 6650-01-472-2244
NSN 5925-01-308-2487
NSN 5950-01-522-3161
NSN 5990-01-621-1777
NSN 5835-01-259-0859
NSN 5895-01-528-4611
NSN 5996-00-151-4462
NSN 5835-00-402-8387
NSN 5925-01-317-9967
NSN 6610-00-868-7579
NSN 4140-01-554-5494