| DISTANCE FROM FIRST GROOVE TO STEM END | 0.2470 INCHES MINIMUM AND 0.2530 INCHES MAXIMUM |
| DISTANCE FROM SECOND GROOVE TO STEM END | 0.4020 INCHES MINIMUM AND 0.4100 INCHES MAXIMUM |
| DISTANCE FROM THIRD GROOVE TO STEM END | 0.5625 INCHES NOMINAL |
| CARBON RELIEF GROOVE | NOT INCLUDED |
| CHAMFER ANGLE IN DEG | 45.0 |
| CHAMFER LENGTH | 0.0156 INCHES NOMINAL |
| FIRST GROOVE DIAMETER | 0.2735 INCHES MINIMUM AND 0.2795 INCHES MAXIMUM |
| FIRST GROOVE WIDTH | 0.0625 INCHES NOMINAL |
| FSC APPLICATION DATA | GASOLINE ENGINE |
| HEAD HEIGHT | 0.1562 INCHES NOMINAL |
| HEAD STYLE | FLAT |
| III MATERIAL AND LOCATION | STEEL, FED STD 66, SAE HNV3 OVERALL |
| PROPRIETARY CHARACTERISTICS | PACS |
| NECK RADIUS | 0.3125 INCHES NOMINAL |
| OUTSIDE DIAMETER | 1.7130 INCHES MINIMUM AND 1.7230 INCHES MAXIMUM |
| SEAT ANGLE IN DEG | 45.0 |
| SECOND GROOVE DIAMETER | 0.2735 INCHES MINIMUM AND 0.2795 INCHES MAXIMUM |
| SECOND GROOVE WIDTH | 0.0625 INCHES NOMINAL |
| STEM DIAMETER | 0.3405 INCHES MINIMUM AND 0.3415 INCHES MAXIMUM |
| STEM LENGTH | 4.6875 INCHES NOMINAL |
| STEM STYLE | MULTI-GROOVED |
| THIRD GROOVE DIAMETER | 0.2969 INCHES NOMINAL |
| THIRD GROOVE WIDTH | 0.8750 INCHES NOMINAL |