| CASEHARDENING INDICATOR | NOT CASEHARDENED |
| DISTANCE FROM BOTTOM TO FIRST RIDGE CENTER | 0.185 INCHES MINIMUM AND 0.191 INCHES MAXIMUM |
| FIRST RIDGE RADIUS | 0.005 INCHES NOMINAL |
| FIRST RIDGE WIDTH | 0.086 INCHES MINIMUM AND 0.090 INCHES MAXIMUM |
| FSC APPLICATION DATA | ENGINE,AIRCRAFT,RECIPROCATING |
| LARGEST INSIDE DIAMETER | 0.339 INCHES MINIMUM AND 0.343 INCHES MAXIMUM |
| LARGEST OUTSIDE DIAMETER | 0.455 INCHES NOMINAL |
| OUTSIDE INCLUDED ANGLE IN DEG | 14.0 |
| OVERALL HEIGHT | 0.372 INCHES MINIMUM AND 0.382 INCHES MAXIMUM |
| MATERIAL | STEEL |
| MINIMUM INSIDE DIAMETER | 0.307 INCHES |
| STYLE DESIGNATOR | STRAIGHT BORE W/RIDGE AND TWO GROOVES-LOWER OUTSIDE RADIUS |
| THREAD PROVISION | UNTHREADED |