1/4" x 0.734" OD Thru-Hardened Yellow Zinc Finish Steel USS General Purpose Flat Washer / CROSS-SECTIONAL SHAPE STYLE: 1 RECTANGULAR HOLE DIAMETER: 0.313 INCHES NOMINAL PERIPHERAL SHAPE STYLE: 1 ROUND CENTER HOLE SHAPE STYLE: 1 ROUND THICKNESS: 0.080 INCHES NOMINAL OVERALL DIAMETER: 0.734 INCHES NOMINAL PART NAME ASSIGNED BY CONTROLLING AGENCY: INAVY-WASHER, FLAT 1/4 INCH SPECIAL FEATURES: 1/4 USS YELLOW ZINC PLATED THRU HARD HIGH STRENGTH FLAT WASHER COLOR: YELLOW OVERALL MATERIAL: STEEL OVERALL SURFACE TREATMENT: ZINC OVERALL