Dimensions are shown in millimeters. LIGHTED PUSH BUTTON SWITCHES 13BLseries 6 mm SQUARE TYPE: 13BL-060 CIRCUIT DIAGRAM P. C. B. MOUNTING HOLE 9 mm SQUARE TYPE: 13BL-090 11 mm SQUARE TYPE: 13BL-110 CIRCUIT DIAGRAM P. C. B. MOUNTING HOLE PART NUMBER AND LED CHARACTERISTIC R= ES-VF IF