| DISTANCE FROM SECOND GROOVE TO STEM END | 0.7187 INCHES NOMINAL |
| CARBON RELIEF GROOVE | NOT INCLUDED |
| CHAMFER ANGLE IN DEG | 30.0 |
| CHAMFER LENGTH | 0.0312 INCHES NOMINAL |
| DISTANCE FROM FIRST GROOVE TO STEM END | 0.2500 INCHES NOMINAL |
| FIRST GROOVE DIAMETER | 0.2450 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM |
| FIRST GROOVE WIDTH | 0.4370 INCHES MINIMUM AND 0.4420 INCHES MAXIMUM |
| FSC APPLICATION DATA | GASOLINE ENGINE |
| HEAD HEIGHT | 0.1875 INCHES NOMINAL |
| HEAD STYLE | FLAT |
| OUTSIDE DIAMETER | 1.4950 INCHES MINIMUM AND 1.5050 INCHES MAXIMUM |
| METALLIC HARDNESS RATING AND LOCATION | 28.0 ROCKWELL C MINIMUM STEM |
| METALLIC HARDNESS RATING AND LOCATION | 37.0 ROCKWELL C MAXIMUM STEM |
| METALLIC HARDNESS RATING AND LOCATION | 45.0 ROCKWELL C MINIMUM TIP |
| NECK RADIUS | 0.3750 INCHES NOMINAL |
| SEAT ANGLE IN DEG | 45.0 |
| SECOND GROOVE DIAMETER | 0.3190 INCHES MINIMUM AND 0.3240 INCHES MAXIMUM |
| SECOND GROOVE WIDTH | 0.0500 INCHES MINIMUM AND 0.0600 INCHES MAXIMUM |
| STEM DIAMETER | 0.3710 INCHES MINIMUM AND 0.3720 INCHES MAXIMUM |
| STEM LENGTH | 4.9687 INCHES NOMINAL |
| STEM STYLE | DOUBLE GROOVED |