M16 DIN 127 Plain Finish Split Lock Washer / HOLE DIAMETER: 16.2 MILLIMETERS MINIMUM AND 17.0 MILLIMETERS MAXIMUM OUTSIDE DIAMETER: 27.4 MILLIMETERS MAXIMUM MATERIAL THICKNESS: 3.3 MILLIMETERS MINIMUM AND 3.7 MILLIMETERS MAXIMUM END ITEM IDENTIFICATION: MINE PROTECTED CLEARANCE VEHICLE MPCV, MK1 - 2320-01-529-2251; MRAP BUFFALO MK2A2; MRAP - COUGAR PART NAME ASSIGNED BY CONTROLLING AGENCY: LOCK WASHER SPECIAL FEATURES: M16 MATERIAL: STEEL OVERALL STYLE DESIGNATOR: 108 SPLIT HELICAL-RIGHT HAND