Used on 6640-01-256-9697. neoprene sponge with pressure sensitive adhesive on one side; 0.312 inch hole dia, 0.500 inch in width, 0.828 inch in length, 0.060 inch thick; for use on blood cells counter, 131 series
0.188" hole diameter 12.120" overall length 4.960" overall width gasket has two apertures, each aperture has four 0.120 in. inside corner radii. both apertures are 11.360 in. long, one aperture is 1.320 in. wide