M12 DIN 127 Mechanical Zinc Finish Split Lock Washer / HOLE DIAMETER: 12.7 MILLIMETERS NOMINAL OUTSIDE DIAMETER: 21.0 MILLIMETERS NOMINAL MATERIAL THICKNESS: 2.5 MILLIMETERS MAXIMUM END ITEM IDENTIFICATION: MRAP BUFFALO MK2A2 PART NAME ASSIGNED BY CONTROLLING AGENCY: WASHER LOCK SPECIAL FEATURES: M12 DIN 127 ZINC PLATED SPLIT LOCK WASHER MATERIAL: STEEL OVERALL SURFACE TREATMENT: ZINC OVERALL STYLE DESIGNATOR: 108 SPLIT HELICAL-RIGHT HAND