| FULL INTERNAL THREAD LENGTH | 0.280 INCHES MINIMUM AND 0.330 INCHES MAXIMUM |
| INSERT SIZE | 0.4375-14 NC-2A |
| INTERNAL THREAD RELIEF DEPTH | 0.060 INCHES MINIMUM AND 0.080 INCHES MAXIMUM |
| LENGTH | 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5734 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4140 OVERALL |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| SPECIAL FEATURES | HAS INTERNAL THREAD LOCK |
| STYLE DESIGNATOR | KEYLOCK |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3B |
| THREAD LENGTH | 0.305 INCHES NOMINAL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES DESIGNATOR | UNJF |
| THREAD QUANTITY PER INCH | 28 |