| CARBON RELIEF GROOVE | NOT INCLUDED |
| CHAMFER ANGLE IN DEG | 45.0 |
| CHAMFER LENGTH | 0.0312 INCHES NOMINAL |
| DISTANCE FROM FIRST GROOVE TO STEM END | 0.0950 INCHES MINIMUM AND 0.1050 INCHES MAXIMUM |
| DISTANCE FROM SECOND GROOVE TO STEM END | 0.2555 INCHES MINIMUM AND 0.2605 INCHES MAXIMUM |
| DISTANCE FROM THIRD GROOVE TO STEM END | 0.4160 INCHES MINIMUM AND 0.4210 INCHES MAXIMUM |
| FIRST GROOVE DIAMETER | 0.3390 INCHES MINIMUM AND 0.3440 INCHES MAXIMUM |
| FIRST GROOVE WIDTH | 0.1000 INCHES NOMINAL |
| FSC APPLICATION DATA | GASOLINE ENGINE |
| HEAD HEIGHT | 0.2400 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM |
| HEAD STYLE | INVERTED CONE |
| METALLIC HARDNESS RATING AND LOCATION | 50.0 ROCKWELL C MINIMUM TIP |
| MINOR DIAMETER LENGTH | 0.5160 INCHES MINIMUM AND 0.5230 INCHES MAXIMUM |
| MINOR OUTSIDE DIAMETER | 0.4320 INCHES MINIMUM AND 0.4350 INCHES MAXIMUM |
| NECK RADIUS | 0.8750 INCHES NOMINAL |
| OUTSIDE DIAMETER | 2.7400 INCHES MINIMUM AND 2.7500 INCHES MAXIMUM |
| SEAT ANGLE IN DEG | 29.0 |
| SECOND GROOVE DIAMETER | 0.3390 INCHES MINIMUM AND 0.3440 INCHES MAXIMUM |
| SECOND GROOVE WIDTH | 0.1000 INCHES NOMINAL |
| STEM DIAMETER | 0.5270 INCHES MINIMUM AND 0.5280 INCHES MAXIMUM |
| STEM LENGTH | 5.8460 INCHES MINIMUM AND 5.8810 INCHES MAXIMUM |
| STEM STYLE | TAPERED MULTI-GROOVED |
| TAPER ANGLE IN DEG | 15.0 |
| THIRD GROOVE DIAMETER | 0.3390 INCHES MINIMUM AND 0.3440 INCHES MAXIMUM |
| THIRD GROOVE WIDTH | 0.1000 INCHES NOMINAL |