| DRIVE TYPE | DRILLED FACE |
| ACCOMMODATION TYPE AND QUANTITY | 4 HOLES |
| ANGLE BETWEEN ACCOMMODATIONS IN DEG | 90.0 |
| BORE DIAMETER | 3.062 INCHES NOMINAL |
| BORE SHAPE | STRAIGHT |
| CASEHARDENING INDICATOR | NOT CASE-HARDENED |
| DEPTH | 0.375 INCHES NOMINAL |
| DIAMETER | 0.312 INCHES MINIMUM AND 0.317 INCHES MAXIMUM |
| FURNISHED ITEMS | BEVELED THREAD |
| OVERALL LENGTH | 0.375 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-200/3, TEMPER T3511 FED SPEC SINGLE MATERIAL RESPONSE OR WW-T-7700/3, TEMPER T3 FED SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | ALUMINUM ALLOY 2024 |
| RADIUS FROM GEOMETRIC AXIS TO ACCOMMODATION | 1.750 INCHES NOMINAL |
| SCREW THREAD SERIES DESIGNATOR | UN |
| SPECIAL FEATURES | RAISED BOSS 0.187 IN. H BY 3.938 IN. DIA 4 LOCKWIRE HOLES 0.062 IN. DIA 4 PLACES |
| THREAD SIZE | 4.250-12 |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 TYPE 2 CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE |
| SURFACE TREATMENT | ANODIZE |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LOCATION | BOTH ENDS |