| FEATURES PROVIDED | INDIVIDUALLY KEYED |
| FULL INTERNAL THREAD LENGTH | 0.490 INCHES NOMINAL |
| INSERT SIZE | 0.5000-13 UNC-2A |
| INTERNAL THREAD RELIEF DEPTH | 0.060 INCHES MINIMUM AND 0.080 INCHES MAXIMUM |
| LENGTH | 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4140 OVERALL |
| NOMINAL THREAD SIZE | 0.3750 INCHES |
| STYLE DESIGNATOR | GROOVED KEYLOCK |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
| THREAD CLASS | 3B |
| THREAD QUANTITY PER INCH | 16 |
| THREAD SERIES DESIGNATOR | UNJC |