| DISTANCE FROM GROOVE TO STEM END | 0.2400 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM |
| CARBON RELIEF GROOVE | NOT INCLUDED |
| CHAMFER ANGLE IN DEG | 45.0 |
| CHAMFER LENGTH | 0.0156 INCHES NOMINAL |
| GROOVE DIAMETER | 0.2670 INCHES MINIMUM AND 0.2730 INCHES MAXIMUM |
| GROOVE WIDTH | 0.0950 INCHES MINIMUM AND 0.1050 INCHES MAXIMUM |
| HEAD HEIGHT | 0.1562 INCHES NOMINAL |
| HEAD STYLE | FLAT |
| III FSC APPLICATION DATA | ENGINE,GASOLINE COMPONENTS,NONAIRCRAFT |
| III MATERIAL AND LOCATION | STEEL, FED STD 66, AISI/SAE 8645 OVERALL |
| PROPRIETARY CHARACTERISTICS | PACS |
| METALLIC HARDNESS RATING AND LOCATION | 30.0 ROCKWELL C MINIMUM HEAD |
| METALLIC HARDNESS RATING AND LOCATION | 30.0 ROCKWELL C MINIMUM STEM ERR-100 |
| METALLIC HARDNESS RATING AND LOCATION | 40.0 ROCKWELL C MAXIMUM HEAD |
| METALLIC HARDNESS RATING AND LOCATION | 40.0 ROCKWELL C MAXIMUM STEM |
| METALLIC HARDNESS RATING AND LOCATION | 50.0 ROCKWELL C MINIMUM TIP ERR-100 |
| NECK RADIUS | 0.2500 INCHES NOMINAL |
| OUTSIDE DIAMETER | 1.3075 INCHES MINIMUM AND 1.3175 INCHES MAXIMUM |
| SEAT ANGLE IN DEG | 45.0 |
| STEM DIAMETER | 0.3010 INCHES MINIMUM AND 0.3090 INCHES MAXIMUM |
| STEM LENGTH | 4.2168 INCHES MINIMUM AND 4.2208 INCHES MAXIMUM |
| STEM STYLE | GROOVED |