| GENERAL CHARACTERISTICS ITEM DESCRIPTION | IRON CASTING,GRAY SAND CAST OR NORMALIZED PERMANENT MOLDED IRON,MATERIAL HARDNESS BRINELL 170-229,4.000 IN. DIA,BASE IS 0.625 IN. W,DRILL THRU FOR REAMING COUNTERSINK AT 90 DEGREES TO 0.266 DIA REAM 0.249 M 0.250 P IN. DIA THRU 2 HOLES LOCATED WITHIN 0.001 RADIUS OF TRUE POSITION,DRILL 1.000 DIA THRU 2 HOLES,DRILL 0.406 DIA THRU COUNTERSINK,AT 90 DEGREES TO 0.438 DIA OPPOSITE SIDE FOUR HOLES |