1/4" 316 Stainless Steel Small OD Flat Washer / CROSS-SECTIONAL SHAPE STYLE: 2 BLANK RECTANGULAR HOLE DIAMETER: 0.281 INCHES NOMINAL PERIPHERAL SHAPE STYLE: 1 ROUND CENTER HOLE SHAPE STYLE: 1 ROUND THICKNESS: 0.040 INCHES NOMINAL OVERALL DIAMETER: 0.625 INCHES NOMINAL END ITEM IDENTIFICATION: 2320-01-531-2701;TRUCK,UTILITY-INTERNALLY TRANSPORTABLE; MRAP - COUGAR AMBULANCE PART NAME ASSIGNED BY CONTROLLING AGENCY: WASHER,FLAT SPECIAL FEATURES: GRADE: 316 MATERIAL: STEEL CORROSION RESISTING OVERALL