| HEAD STYLE | FLAT KEYED |
| HEAD DIAMETER | 0.310 INCHES MINIMUM AND 0.340 INCHES MAXIMUM |
| KEY LENGTH | 0.055 INCHES NOMINAL |
| HEAD HEIGHT | 0.032 INCHES NOMINAL |
| NUT STYLE | BLIND RIVET W/SMOOTH ROUND SHANK |
| NUT DIAMETER | 0.185 INCHES MINIMUM AND 0.189 INCHES MAXIMUM |
| NUT LENGTH | 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM |
| NOMINAL THREAD SIZE | 0.138 INCHES |
| MATERIAL | ALUMINUM ALLOY 6053 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-430,TEMPER T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |