| FULL INTERNAL THREAD LENGTH | 0.563 INCHES MINIMUM AND 0.613 INCHES MAXIMUM |
| INSERT SIZE | 0.812-16 UN 2A |
| INTERNAL THREAD RELIEF DEPTH | 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM |
| LENGTH | 0.673 INCHES MINIMUM AND 0.703 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 302 OVERALL |
| NOMINAL THREAD SIZE | 0.500 INCHES |
| STYLE DESIGNATOR | KEYLOCK |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 3B |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| THREAD QUANTITY PER INCH | 20 |