| CASEHARDENING INDICATOR | NOT CASEHARDENED |
| DISTANCE BETWEEN FIRST AND SECOND GROOVE CENTERS | 0.143 INCHES MINIMUM AND 0.167 INCHES MAXIMUM |
| DISTANCE FROM BOTTOM TO FIRST GROOVE CENTER | 0.167 INCHES MINIMUM AND 0.178 INCHES MAXIMUM |
| FIRST GROOVE WIDTH | 0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM |
| FSC APPLICATION DATA | CYLINDER HEAD AND VALVES GROUP,DIESEL ENGINE |
| LARGEST INSIDE DIAMETER | 0.493 INCHES MINIMUM AND 0.497 INCHES MAXIMUM |
| LARGEST OUTSIDE DIAMETER | 0.713 INCHES MINIMUM AND 0.717 INCHES MAXIMUM |
| OUTSIDE INCLUDED ANGLE IN DEG | 13.7 |
| OVERALL HEIGHT | 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM |
| MATERIAL | STEEL |
| MINIMUM INSIDE DIAMETER | 0.431 INCHES |
| SECOND GROOVE WIDTH | 0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM |
| STYLE DESIGNATOR | STRAIGHT BORE W/TWO GROOVES-LOWER OUTSIDE RADIUS |
| THREAD PROVISION | UNTHREADED |