| FLANGE DIAMETER | 0.756 INCHES NOMINAL |
| FLANGE THICKNESS | 0.06 INCHES NOMINAL |
| FULL INTERNAL THREAD LENGTH | 1.36 INCHES MINIMUM AND 1.39 INCHES MAXIMUM |
| INSERT SIZE | .500 AR |
| INTERNAL THREAD RELIEF DEPTH | 0.775 INCHES MAXIMUM |
| LENGTH | 1.26 INCHES NOMINAL |
| MATERIAL | STEEL OVERALL |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | INSERT,THD .31-18 .500 AR |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD SIZE | 0.31 INCHES |
| STYLE DESIGNATOR | BLIND |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.280 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNC |