| DISTANCE FROM SECOND GROOVE TO STEM END | 0.5305 INCHES MINIMUM AND 0.5455 INCHES MAXIMUM |
| CARBON RELIEF GROOVE | NOT INCLUDED |
| CHAMFER ANGLE IN DEG | 45.0 |
| CHAMFER LENGTH | 0.0300 INCHES NOMINAL |
| DISTANCE FROM FIRST GROOVE TO STEM END | 0.2730 INCHES MINIMUM AND 0.2880 INCHES MAXIMUM |
| FIRST GROOVE DIAMETER | 0.3590 INCHES MINIMUM AND 0.3650 INCHES MAXIMUM |
| FIRST GROOVE WIDTH | 0.1320 INCHES MINIMUM AND 0.1420 INCHES MAXIMUM |
| FSC APPLICATION DATA | GASOLINEENGINE |
| HEAD HEIGHT | 0.1980 INCHES MINIMUM AND 0.2130 INCHES MAXIMUM |
| HEAD STYLE | CONCAVE |
| OUTSIDE DIAMETER | 1.9990 INCHES MINIMUM AND 2.0009 INCHES MAXIMUM |
| METALLIC HARDNESS RATING AND LOCATION | 45.0 ROCKWELL C MINIMUM TIP |
| NECK RADIUS | 0.4400 INCHES NOMINAL |
| SEAT ANGLE IN DEG | 30.0 |
| SECOND GROOVE DIAMETER | 0.3590 INCHES MINIMUM AND 0.3650 INCHES MAXIMUM |
| SECOND GROOVE WIDTH | 0.1090 INCHES NOMINAL |
| STEM DIAMETER | 0.4337 INCHES MINIMUM AND 0.4345 INCHES MAXIMUM |
| STEM LENGTH | 5.1550 INCHES MINIMUM AND 5.1950 INCHES MAXIMUM |
| STEM STYLE | DOUBLE GROOVED |