Mil Spec Washer, Flat Washer Type Mil-Spec, Dimensional Standards NAS620, Material Stainless Steel, Material Grade/Class 18-8, Finish Plain, For Screw Size #8, Inside Diameter 0.169 in, Outside Diameter 19/64 in, Maximum Thickness 0.018 in, System of Measurement Inch, Minimum Thickness 0.014 in, Inside Diameter Tolerance +/-0.010 in, Material Quality Standards ASTM A582, Outside Diameter Tolerance +/-0.010 in, Pack Size Small Pack