| COUNTERBORE DIAMETER | 0.128 INCHES MINIMUM AND 0.133 INCHES MAXIMUM FIRST END |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL EXCEPT INSERT |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-M-20693 COMPOSITION A TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE LOCKING INSERT |
| NOMINAL THREAD SIZE | 0.112 INCHES |
| NUT HEIGHT | 0.130 INCHES NOMINAL |
| NUT COUNTERBORE DEPTH | 0.037 INCHES MINIMUM AND 0.043 INCHES MAXIMUM FIRST END |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| PILOT DIAMETER | 0.158 INCHES MINIMUM AND 0.162 INCHES MAXIMUM |
| PILOT LENGTH | 0.040 INCHES NOMINAL |
| SURFACE TREATMENT | PASSIVATE LOCKING INSERT |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES | UNC |
| THREAD QUANTITY PER INCH | 40 |