| MINOR OUTSIDE DIAMETER | 0.1640 INCHES MINIMUM AND 0.1680 INCHES MAXIMUM |
| NECK RADIUS | 0.1875 INCHES NOMINAL |
| OUTSIDE DIAMETER | 0.8390 INCHES MINIMUM AND 0.8490 INCHES MAXIMUM |
| SEAT ANGLE IN DEG | 46.0 |
| SPECIAL FEATURES | GRUMMAN AEROSPACE A-10 AIRCRAFT |
| STEM DIAMETER | 0.2590 INCHES MINIMUM AND 0.2895 INCHES MAXIMUM |
| STEM LENGTH | 0.8790 INCHES MINIMUM AND 0.8910 INCHES MAXIMUM |
| STEM STYLE | TAPERED |
| TAPER ANGLE IN DEG | 15.0 |
| DISTANCE FROM MINOR DIAMETER TO STEM END | 0.1710 INCHES MINIMUM AND 0.1800 INCHES MAXIMUM |
| CARBON RELIEF GROOVE | NOT INCLUDED |
| CHAMFER ANGLE IN DEG | 45.0 |
| CHAMFER LENGTH | 0.0260 INCHES MINIMUM AND 0.0310 INCHES MAXIMUM |
| HEAD HEIGHT | 0.1030 INCHES MINIMUM AND 0.1130 INCHES MAXIMUM |
| HEAD STYLE | FLAT |
| III FSC APPLICATION DATA | GASOLINE ENGINE |
| III MATERIAL AND LOCATION | |
| III MATERIAL AND LOCATION | STEEL, FED STD 66, SAE VF2 SEAT FACE |
| III MATERIAL AND LOCATION | STEEL, FED STD 66, SAE EV7 HEAD |
| PROPRIETARY CHARACTERISTICS | PACS |
| METALLIC HARDNESS RATING AND LOCATION | 40.0 ROCKWELL C MINIMUM OVERALL |
| METALLIC HARDNESS RATING AND LOCATION | 45.0 ROCKWELL C MAXIMUM OVERALL |
| MINOR DIAMETER LENGTH | 0.1780 INCHES MINIMUM AND 0.1980 INCHES MAXIMUM |