| DISTANCE FROM SECOND GROOVE TO STEM END | 0.5000 INCHES NOMINAL |
| CARBON RELIEF GROOVE | NOT INCLUDED |
| CHAMFER ANGLE IN DEG | 45.0 |
| CHAMFER LENGTH | 0.0312 INCHES NOMINAL |
| DISTANCE FROM FIRST GROOVE TO STEM END | 0.3437 INCHES NOMINAL |
| FIRST GROOVE DIAMETER | 0.3020 INCHES MINIMUM AND 0.3080 INCHES MAXIMUM |
| FIRST GROOVE WIDTH | 0.0625 INCHES NOMINAL |
| FSC APPLICATION DATA | GASOLINE ENGINE |
| HEAD HEIGHT | 0.1875 INCHES NOMINAL |
| HEAD STYLE | FLAT |
| OUTSIDE DIAMETER | 1.7440 INCHES MINIMUM AND 1.7540 INCHES MAXIMUM |
| METALLIC HARDNESS RATING AND LOCATION | 50.0 ROCKWELL SUPERFICIAL 30-N MINIMUM STEM |
| METALLIC HARDNESS RATING AND LOCATION | 50.0 ROCKWELL SUPERFICIAL 30-N MINIMUM HEAD |
| METALLIC HARDNESS RATING AND LOCATION | 57.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM HEAD |
| METALLIC HARDNESS RATING AND LOCATION | 57.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM STEM |
| METALLIC HARDNESS RATING AND LOCATION | 67.0 ROCKWELL SUPERFICIAL 30-N MINIMUM TIP |
| NECK RADIUS | 0.3125 INCHES NOMINAL |
| SEAT ANGLE IN DEG | 44.0 |
| SECOND GROOVE DIAMETER | 0.3020 INCHES MINIMUM AND 0.3080 INCHES MAXIMUM |
| SECOND GROOVE WIDTH | 0.0625 INCHES NOMINAL |
| STEM DIAMETER | 0.3710 INCHES MINIMUM AND 0.3720 INCHES MAXIMUM |
| STEM LENGTH | 4.9375 INCHES NOMINAL |
| STEM STYLE | DOUBLE GROOVED |