| MATERIAL AND LOCATION | STEEL, FED STD 66, AISI/SAE 3140 OVERALL |
| METALLIC HARDNESS RATING AND LOCATION | 30.0 ROCKWELL C MINIMUM HEAD |
| 36.0 ROCKWELL C MAXIMUM HEAD |
| 30.0 ROCKWELL C MINIMUM STEM |
| 36.0 ROCKWELL C MAXIMUM STEM |
| 83.0 ROCKWELL SUPERFICIAL 15-N MINIMUM TIP |
| HEAD STYLE | FLAT |
| HEAD HEIGHT | 0.1810 INCHES NOMINAL |
| OUTSIDE DIAMETER | 2.0890 INCHES MINIMUM AND |
| 2.0990 INCHES MAXIMUM |
| NECK RADIUS | 0.4380 INCHES NOMINAL |
| SEAT ANGLE IN DEG | 30.0 |
| STEM STYLE | DOUBLE GROOVED |
| CHAMFER LENGTH | 0.0150 INCHES NOMINAL |
| STEM LENGTH | 5.5545 INCHES MINIMUM AND |
| 5.6295 INCHES MAXIMUM |
| STEM DIAMETER | 0.3720 INCHES MINIMUM AND |
| 0.3730 INCHES MAXIMUM |
| FIRST GROOVE DIAMETER | 0.3020 INCHES MINIMUM AND |
| 0.3080 INCHES MAXIMUM |
| SECOND GROOVE DIAMETER | 0.3020 INCHES MINIMUM AND |
| 0.3080 INCHES MAXIMUM |
| CHAMFER ANGLE IN DEG | 45.0 |
| CARBON RELIEF GROOVE | NOT INCLUDED |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 11083 |
| DESIGN CONTROL REFERENCE | 9L9851 |