| CRITICALITY CODE JUSTIFICATION | FEAT |
| FULL INTERNAL THREAD LENGTH | 0.260 INCHES MINIMUM AND 0.290 INCHES MAXIMUM |
| INSERT SIZE | 0.403 IN. MIN. TO 0.411 IN. MAX. WITH 0.500-20 UNJF-3A EXTERNAL THREADS |
| INTERNAL THREAD RELIEF DEPTH | 0.100 INCHES NOMINAL |
| LENGTH | 0.390 INCHES MAXIMUM |
| NOMINAL THREAD SIZE | 0.3125 INCHES |
| SPECIAL FEATURES | THIS CHANGE IS: THIS PART IS ESSENTIOAL TO THE WEAPON SYSTEM PERFORMANCEOR OPERATIONS |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| STYLE DESIGNATOR | KEYLOCK |
| THREAD CLASS | 3B |