| FEATURES PROVIDED | INDIVIDUALLY KEYED |
| FULL INTERNAL THREAD LENGTH | 0.510 INCHES MINIMUM AND 0.540 INCHES MAXIMUM |
| INSERT SIZE | 0.6875-11NS-2A |
| INTERNAL THREAD RELIEF DEPTH | 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM |
| LENGTH | 0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 302 OVERALL |
| NOMINAL THREAD SIZE | 0.4375 INCHES |
| STYLE DESIGNATOR | GROOVED KEYLOCK |
| THREAD CLASS | 3B |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| THREAD QUANTITY PER INCH | 20 |