| CENTER HOLE SHAPE STYLE | ROUND |
| CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
| HOLE DIAMETER | 1.578 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/5 CONDITION T3 OR T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | ALUMINUM ALLOY 2024 OVERALL |
| OVERALL DIAMETER | 2.308 INCHES MINIMUM AND 2.333 INCHES MAXIMUM |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | WASHER,FLAT,SHORT FLARELESS |
| PERIPHERAL SHAPE STYLE | ROUND |
| SPECIFICATION/STANDARD DATA | 0U583-AS4679B INTERNATIONAL STD/SPEC |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-5541,CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | UNABLE TO DECODE |
| THICKNESS | 0.028 INCHES MINIMUM AND 0.036 INCHES MAXIMUM |