| THREAD SERIES | UNC |
| NOMINAL THREAD SIZE | 0.138 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | PLASTIC POLYHEXAMETHYLENE AMIDE OR |
| PLASTIC POLYCAPROLACTAM CAP |
| PLASTIC POLYHEXAMETHYLENE AMIDE OR |
| PLASTIC POLYCAPROLACTAM LOCKING INSERT |
| STEEL NUT |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-M-20693 MIL SPEC 1ST MATERIAL RESPONSE CAP |
| MIL-M-2693 MIL SPEC 2ND MATERIAL RESPONSE LOCKING INSERT |
| SURFACE TREATMENT | CADMIUM NUT |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE NUT |
| NUT STYLE | CLINCH |
| PILOT DIAMETER | 0.190 INCHES MINIMUM AND |
| 0.194 INCHES MAXIMUM |
| PILOT LENGTH | 0.057 INCHES MINIMUM AND |
| 0.063 INCHES MAXIMUM |
| NUT DIAMETER | 0.276 INCHES MINIMUM AND |
| 0.286 INCHES MAXIMUM |
| NUT HEIGHT | 0.308 INCHES MINIMUM AND |
| 0.314 INCHES MAXIMUM |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| NUT COUNTERBORE DEPTH | 0.060 INCHES NOMINAL NUT |
| COUNTERBORE DIAMETER | 0.152 INCHES MINIMUM AND |
| 0.157 INCHES MAXIMUM NUT |
| TEMP RATING | 350.0 DEG FAHRENHEIT NOMINAL |