| CARBON RELIEF GROOVE | INCLUDED |
| CHAMFER ANGLE IN DEG | 45.0 |
| CHAMFER LENGTH | 0.0200 INCHES NOMINAL |
| DISTANCE FROM GROOVE TO STEM END | 0.3100 INCHES MINIMUM AND 0.3150 INCHES MAXIMUM |
| FSC APPLICATION DATA | DIESEL ENGINE |
| GROOVE DIAMETER | 0.4220 INCHES MINIMUM AND 0.4280 INCHES MAXIMUM |
| GROOVE WIDTH | 0.1320 INCHES MINIMUM AND 0.1420 INCHES MAXIMUM |
| HEAD HEIGHT | 0.2400 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM |
| HEAD STYLE | MUSHROOM |
| METALLIC HARDNESS RATING AND LOCATION | 27.0 ROCKWELL C MINIMUM HEAD |
| METALLIC HARDNESS RATING AND LOCATION | 27.0 ROCKWELL C MINIMUM STEM |
| METALLIC HARDNESS RATING AND LOCATION | 50.0 ROCKWELL C MINIMUM TIP |
| NECK RADIUS | 0.8125 INCHES NOMINAL |
| OUTSIDE DIAMETER | 2.0900 INCHES MINIMUM AND 2.1000 INCHES MAXIMUM |
| SEAT ANGLE IN DEG | 45.0 |
| STEM DIAMETER | 0.4940 INCHES MINIMUM AND 0.4950 INCHES MAXIMUM |
| STEM LENGTH | 8.5370 INCHES MINIMUM AND 8.5520 INCHES MAXIMUM |
| STEM STYLE | GROOVED |