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 6130-01-180-0164
NSN 6130-01-052-2937
NSN 6610-01-154-7949
NSN 6130-00-137-0168
NSN 6645-01-237-2568
NSN 6145-01-584-9541
NSN 5985-00-952-6626
NSN 7035-01-412-8322
NSN 5996-01-367-6556
NSN 5998-01-045-7927
NSN 5915-01-085-1762
NSN 6645-01-146-8610