| MATERIAL AND LOCATION | STEEL OVERALL |
| METALLIC HARDNESS RATING AND LOCATION | 43.0 ROCKWELL C MINIMUM TIP |
| HEAD STYLE | FLAT |
| HEAD HEIGHT | 0.1600 INCHES MINIMUM AND |
| 0.1750 INCHES MAXIMUM |
| OUTSIDE DIAMETER | 1.4950 INCHES MINIMUM AND |
| 1.5050 INCHES MAXIMUM |
| NECK RADIUS | 0.3125 INCHES NOMINAL |
| SEAT ANGLE IN DEG | 45.0 |
| STEM STYLE | TAPERED |
| CHAMFER LENGTH | 0.0200 INCHES MINIMUM AND |
| 0.0400 INCHES MAXIMUM |
| MINOR OUTSIDE DIAMETER | 0.2450 INCHES MINIMUM AND |
| 0.2490 INCHES MAXIMUM |
| MINOR DIAMETER LENGTH | 0.1800 INCHES MINIMUM AND |
| 0.2000 INCHES MAXIMUM |
| STEM LENGTH | 4.1875 INCHES MINIMUM AND |
| 4.2275 INCHES MAXIMUM |
| STEM DIAMETER | 0.3405 INCHES MINIMUM AND |
| 0.3415 INCHES MAXIMUM |
| DISTANCE FROM MINOR DIAMETER TO STEM END | 0.4010 INCHES MINIMUM AND |
| 0.4030 INCHES MAXIMUM |
| CHAMFER ANGLE IN DEG | 45.0 |
| TAPER ANGLE IN DEG | 15.0 |
| CARBON RELIEF GROOVE | NOT INCLUDED |
| FSC APPLICATION DATA | GASOLINE ENGINE |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81349 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MIL-E-11275 |
| MANUFACTURERS CODE | 96906 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS13999-6 |