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 2925-00-889-8004
NSN 6610-01-521-4974
NSN 6320-01-498-4954
NSN 6135-00-995-1089
NSN 5985-01-277-5165
NSN 6220-01-398-4130
NSN 6220-01-243-5656
NSN 5915-01-403-2599
NSN 5895-01-366-2989
NSN 5925-00-182-7452
NSN 5950-01-389-7935
NSN 5950-00-577-4336