M5 DIN 6797 Type A Zinc Plated External Tooth Lock Washer / HOLE DIAMETER: 5.3 MILLIMETERS MINIMUM AND 5.4 MILLIMETERS MAXIMUM OUTSIDE DIAMETER: 9.6 MILLIMETERS MINIMUM AND 10.0 MILLIMETERS MAXIMUM MATERIAL THICKNESS: 0.5 MILLIMETERS MINIMUM AND 0.6 MILLIMETERS MAXIMUM END ITEM IDENTIFICATION: 4320-01-617-7587 PART NAME ASSIGNED BY CONTROLLING AGENCY: LOCK WASHER EXTERNAL TOOTH METRIC MATERIAL: STEEL OVERALL SURFACE TREATMENT: ZINC OVERALL STYLE DESIGNATOR: 100 FLAT EXTERNAL TEETH