| DISTANCE FROM GROOVE TO STEM END | 0.1830 INCHES MINIMUM AND 0.1930 INCHES MAXIMUM |
| CARBON RELIEF GROOVE | NOT INCLUDED |
| CHAMFER ANGLE IN DEG | 45.0 |
| CHAMFER LENGTH | 0.0150 INCHES NOMINAL |
| GROOVE WIDTH | 0.0950 INCHES MINIMUM AND 0.1050 INCHES MAXIMUM |
| GROOVE DIAMETER | 0.2680 INCHES MINIMUM AND 0.2720 INCHES MAXIMUM |
| HEAD HEIGHT | 0.1600 INCHES NOMINAL |
| HEAD STYLE | FLAT |
| OUTSIDE DIAMETER | 1.7280 INCHES MINIMUM AND 1.7380 INCHES MAXIMUM |
| MATERIAL AND LOCATION | STEEL, FED STD 66, SAE HNV3 OVERALL |
| METALLIC HARDNESS RATING AND LOCATION | 20.0 ROCKWELL C MINIMUM STEM |
| METALLIC HARDNESS RATING AND LOCATION | 50.0 ROCKWELL C MINIMUM SEAT FACE |
| METALLIC HARDNESS RATING AND LOCATION | 50.0 ROCKWELL C MINIMUM TIP |
| NECK RADIUS | 0.3800 INCHES NOMINAL |
| SEAT ANGLE IN DEG | 45.0 |
| STEM DIAMETER | 0.3150 INCHES MINIMUM AND 0.3155 INCHES MAXIMUM |
| STEM LENGTH | 4.3150 INCHES MINIMUM AND 4.3250 INCHES MAXIMUM |
| STEM STYLE | GROOVED |