| DISTANCE FROM GROOVE TO STEM END | 0.4260 INCHES NOMINAL |
| CARBON RELIEF GROOVE | NOT INCLUDED |
| CHAMFER ANGLE IN DEG | 45.0 |
| CHAMFER LENGTH | 0.0156 INCHES MINIMUM AND 0.0312 INCHES MAXIMUM |
| FSC APPLICATION DATA | GASOLINE ENGINE |
| GROOVE DIAMETER | 0.3050 INCHES NOMINAL |
| GROOVE WIDTH | 0.1050 INCHES MINIMUM AND 0.1150 INCHES MAXIMUM |
| HEAD HEIGHT | 0.1370 INCHES MINIMUM AND 0.1470 INCHES MAXIMUM |
| HEAD STYLE | INVERTED CONE |
| III MATERIAL AND LOCATION | STEEL, FED STD 66, AISI/SAE 3140 OVERALL |
| PROPRIETARY CHARACTERISTICS | PACS |
| METALLIC HARDNESS RATING AND LOCATION | 32.0 ROCKWELL C MINIMUM HEAD ERR-100 |
| METALLIC HARDNESS RATING AND LOCATION | 32.0 ROCKWELL D MINIMUM STEM ERR-100 |
| METALLIC HARDNESS RATING AND LOCATION | 38.0 ROCKWELL C MAXIMUM HEAD ERR-100 |
| METALLIC HARDNESS RATING AND LOCATION | 38.0 ROCKWELL C MAXIMUM STEM ERR-100 |
| METALLIC HARDNESS RATING AND LOCATION | 65.0 SHORE SCLEROSCOPE MINIMUM TIP ERR-100 |
| NECK RADIUS | 0.4687 INCHES NOMINAL |
| OUTSIDE DIAMETER | 1.6401 INCHES MINIMUM AND 1.6411 INCHES MAXIMUM |
| SEAT ANGLE IN DEG | 60.0 |
| STEM DIAMETER | 0.3407 INCHES MINIMUM AND 0.3412 INCHES MAXIMUM |
| STEM LENGTH | 4.6160 INCHES MINIMUM AND 4.6210 INCHES MAXIMUM |
| STEM STYLE | GROOVED |