| DISTANCE FROM MINOR DIAMETER TO STEM END | 0.4050 INCHES MINIMUM AND 0.4070 INCHES MAXIMUM |
| CARBON RELIEF GROOVE | NOT INCLUDED |
| CHAMFER ANGLE IN DEG | 30.0 |
| CHAMFER LENGTH | 0.1360 INCHES NOMINAL |
| DISTANCE FROM GROOVE TO STEM END | 0.8700 INCHES MINIMUM AND 0.8800 INCHES MAXIMUM |
| FSC APPLICATION DATA | GASOLINE ENGINE |
| GROOVE DIAMETER | 0.4550 INCHES MINIMUM AND 0.4600 INCHES MAXIMUM |
| GROOVE WIDTH | 0.2500 INCHES NOMINAL |
| HEAD HEIGHT | 0.1570 INCHES NOMINAL |
| HEAD STYLE | MUSHROOM |
| OUTSIDE DIAMETER | 1.8800 INCHES MINIMUM AND 1.8900 INCHES MAXIMUM |
| METALLIC HARDNESS RATING AND LOCATION | 46.0 ROCKWELL C MINIMUM STEM |
| METALLIC HARDNESS RATING AND LOCATION | 52.0 ROCKWELL C MAXIMUM STEM |
| METALLIC HARDNESS RATING AND LOCATION | 60.0 SHORE SCLEROSCOPE MINIMUM TIP |
| MINOR DIAMETER LENGTH | 0.0350 INCHES MINIMUM AND 0.0400 INCHES MAXIMUM |
| MINOR OUTSIDE DIAMETER | 0.3950 INCHES MINIMUM AND 0.3990 INCHES MAXIMUM |
| NECK RADIUS | 0.3750 INCHES NOMINAL |
| SEAT ANGLE IN DEG | 44.0 |
| STEM DIAMETER | 0.4940 INCHES MINIMUM AND 0.4950 INCHES MAXIMUM |
| STEM LENGTH | 6.4060 INCHES NOMINAL |
| STEM STYLE | TAPERED AND GROOVED |
| TAPER ANGLE IN DEG | 15.0 |