7/8" x 2.250" OD Thru-Hardened Yellow Zinc Finish Steel USS General Purpose Flat Washer / CROSS-SECTIONAL SHAPE STYLE: 1 RECTANGULAR HOLE DIAMETER: 0.875 INCHES NOMINAL PERIPHERAL SHAPE STYLE: 1 ROUND CENTER HOLE SHAPE STYLE: 1 ROUND THICKNESS: 0.160 INCHES NOMINAL OVERALL DIAMETER: 2.250 INCHES NOMINAL END ITEM IDENTIFICATION: 2320-01-519-8173 COUGAR 4X4 EOD VARIANT; 2355-01-532-2174 JOINT EOD RAPID RESPONSE VEHICLE (JERRV) 4X4 EOD VARIANT; 2355-01-532-2159 JOINT EOD RAPID RESPONSE VEHICLE (JERRV) 6X6 ENGINEER VARIANT; 2320-01-519-8172 COUGAR 6X6 ENGINEER PART NAME ASSIGNED BY CONTROLLING AGENCY: WASHER, FLAT SPECIAL FEATURES: 7/8 INCH USS THRU HARD HIGH STRENGTH FLAT WASHER MATERIAL: STEEL OVERALL SURFACE TREATMENT: ZINC OVERALL