#4 x 0.250" OD Grade 6/6 Natural Nylon General Purpose Flat Washer / CROSS-SECTIONAL SHAPE STYLE: 1 RECTANGULAR HOLE DIAMETER: 0.115 INCHES NOMINAL PERIPHERAL SHAPE STYLE: 1 ROUND CENTER HOLE SHAPE STYLE: 1 ROUND THICKNESS: 0.032 INCHES NOMINAL OVERALL DIAMETER: 0.250 INCHES NOMINAL END ITEM IDENTIFICATION: AIR CONDITIONER PART NAME ASSIGNED BY CONTROLLING AGENCY: WASHER, FLAT MATERIAL: PLASTIC POLYHEXAMETHYLENE ADIPAMIDE OVERALL