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 5950-00-426-2425
NSN 5930-01-412-1416
NSN 5835-01-412-6901
NSN 5999-00-731-7376
NSN 6220-00-986-1428
NSN 6650-01-442-7893
NSN 6145-01-039-2568
NSN 5920-00-324-2315
NSN 6645-01-366-5033
NSN 5855-01-308-0955
NSN 6135-01-625-0765
NSN 6145-00-076-9324