| COUNTERBORE DIAMETER | 0.103 INCHES MINIMUM AND 0.106 INCHES MAXIMUM NUT |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/3,T3 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | ALUMINUM ALLOY 2011 OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| PILOT DIAMETER | 0.123 INCHES MINIMUM AND 0.127 INCHES MAXIMUM |
| PILOT LENGTH | 0.132 INCHES MINIMUM AND 0.138 INCHES MAXIMUM |
| NOMINAL THREAD SIZE | 0.086 INCHES |
| NUT COUNTERBORE DEPTH | 0.132 INCHES MINIMUM AND 0.138 INCHES MAXIMUM NUT |
| NUT DIAMETER | 0.188 INCHES NOMINAL |
| NUT HEIGHT | 0.315 INCHES MINIMUM AND 0.331 INCHES MAXIMUM |
| NUT STYLE | CLINCH |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CHROMATE OVERALL |
| THREAD CLASS | 2B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 56 |
| THREAD SERIES | UNIFIED NATIONAL COARSE (UNC) |