1/2" x 1.062" OD Thru-Hardened Plain Finish Steel SAE General Purpose Flat Washer / CROSS-SECTIONAL SHAPE STYLE: 1 RECTANGULAR HOLE DIAMETER: 0.526 INCHES MINIMUM AND 0.546 INCHES MAXIMUM PERIPHERAL SHAPE STYLE: 1 ROUND CENTER HOLE SHAPE STYLE: 1 ROUND THICKNESS: 0.074 INCHES MINIMUM AND 0.121 INCHES MAXIMUM OVERALL DIAMETER: 1.055 INCHES MINIMUM AND 1.092 INCHES MAXIMUM END ITEM IDENTIFICATION: MRAP BUFFALO MK2A2 PART NAME ASSIGNED BY CONTROLLING AGENCY: 1/2 INCH FLAT WASHER, THRU-HARDENED HIGH STRENGTH, SAE, PLAIN MATERIAL: STEEL OVERALL