| CARBON RELIEF GROOVE | NOT INCLUDED |
| CHAMFER ANGLE IN DEG | 45.0 |
| CHAMFER LENGTH | 0.0100 INCHES MINIMUM AND 0.0300 INCHES MAXIMUM |
| DISTANCE FROM GROOVE TO STEM END | 0.1850 INCHES MINIMUM AND 0.1910 INCHES MAXIMUM |
| FSC APPLICATION DATA | ACFT ENG R1830 |
| GROOVE DIAMETER | 0.3850 INCHES MINIMUM AND 0.3870 INCHES MAXIMUM |
| GROOVE WIDTH | 0.3740 INCHES MINIMUM AND 0.3760 INCHES MAXIMUM |
| HEAD HEIGHT | 0.2190 INCHES NOMINAL |
| HEAD STYLE | CONCAVE |
| METALLIC HARDNESS RATING AND LOCATION | 40.0 ROCKWELL C MINIMUM OVERALL |
| METALLIC HARDNESS RATING AND LOCATION | 44.0 ROCKWELL C MAXIMUM OVERALL |
| NECK RADIUS | 0.6870 INCHES MINIMUM AND 0.7070 INCHES MAXIMUM |
| OUTSIDE DIAMETER | 2.4010 INCHES MINIMUM AND 2.4110 INCHES MAXIMUM |
| SEAT ANGLE IN DEG | 45.0 |
| STEM DIAMETER | 0.4805 INCHES MINIMUM AND 0.4815 INCHES MAXIMUM |
| STEM LENGTH | 5.4690 INCHES NOMINAL |
| STEM STYLE | GROOVED |