| CENTER HOLE SHAPE STYLE | ROUND |
| CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
| HOLE DIAMETER | 13.24 MILLIMETERS MINIMUM AND 13.48 MILLIMETERS MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A36 GRADE 1016 TO 1022 INTERNATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | WASHER, RETAINER |
| PERIPHERAL SHAPE STYLE | ROUND |
| OUTSIDE LEFT CORNER CHAMFER ANGLE | 45.0 DEGREES NOMINAL |
| OUTSIDE RIGHT CORNER CHAMFER ANGLE | 45.0 DEGREES NOMINAL |
| OVERALL DIAMETER | 56.42 MILLIMETERS MINIMUM AND 56.43 MILLIMETERS MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633 CLASS FE/ZN 5, TYPE II INTERNATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ZINC OVERALL |
| THICKNESS | 8.01 MILLIMETERS MINIMUM AND 8.76 MILLIMETERS MAXIMUM |