0.250" hole diameter 35.120" overall length 27.250" overall width 36 bolt hole quantity the four bolt holes in the corners have a diameter of 0.169 in. the other bolt holes are unequally spaced non-circular
Used on 6640-01-256-9697. 0.437 inch inside dia, 0.625 inch outside dia, 0.062 inch width; neopreme material; for use on blood cells counter, mdl 131 series