| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| CENTER HOLE SHAPE STYLE | ROUND |
| HOLE DIAMETER | 6.40 MILLIMETERS MINIMUM AND |
| 6.62 MILLIMETERS MAXIMUM |
| PERIPHERAL SHAPE STYLE | ROUND |
| OVERALL DIAMETER | 17.57 MILLIMETERS MINIMUM AND |
| 18.00 MILLIMETERS MAXIMUM |
| CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
| THICKNESS | 1.6 MILLIMETERS MINIMUM AND |
| 1.8 MILLIMETERS MAXIMUM |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | PLAIN WASHER-LARGE-SERIES-PRODUCT GRADE A |