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 5935-00-280-3116
NSN 6240-00-617-9599
NSN 5965-01-530-6565
NSN 5985-01-634-0635
NSN 6110-01-316-0744
NSN 5960-00-951-9551
NSN 5999-00-233-6366
NSN 5920-01-007-6165
NSN 6650-00-614-1711
NSN 6620-00-176-5722
NSN 5945-01-527-4351
NSN 6620-01-048-4145