| DISTANCE FROM HOLE CENTER TO STEM END | 0.1840 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM |
| CARBON RELIEF GROOVE | NOT INCLUDED |
| CHAMFER ANGLE IN DEG | 45.0 |
| CHAMFER LENGTH | 0.0312 INCHES NOMINAL |
| FSC APPLICATION DATA | GASOLINE ENGINE |
| HEAD HEIGHT | 0.1560 INCHES NOMINAL |
| HEAD STYLE | MUSHROOM |
| HOLE DIAMETER | 0.0820 INCHES NOMINAL |
| OUTSIDE DIAMETER | 0.8670 INCHES MINIMUM AND 0.8830 INCHES MAXIMUM |
| METALLIC HARDNESS RATING AND LOCATION | 50.0 ROCKWELL C MINIMUM TIP |
| METALLIC HARDNESS RATING AND LOCATION | 56.0 ROCKWELL C MAXIMUM TIP |
| NECK RADIUS | 0.1875 INCHES NOMINAL |
| SEAT ANGLE IN DEG | 45.0 |
| STEM DIAMETER | 0.3090 INCHES MINIMUM AND 0.3100 INCHES MAXIMUM |
| STEM LENGTH | 3.7820 INCHES MINIMUM AND 3.7880 INCHES MAXIMUM |
| STEM STYLE | DRILLED |