| BODY STYLE | ELECTRICALLY SHIELDED, PARTIAL INSULATOR, GASKET SEAT |
| USAGE DESIGN | ENGINE OTHER THAN AIRCRAFT |
| ELECTRODE STYLE | SINGLE ROUND GROUND ELECTRODE |
| THREAD SIZE AND SERIES/TYPE DESIGNATOR | 5/8-24 UNEF SHIELD |
| REACH LENGTH | 0.312 INCHES NOMINAL |
| WIDTH ACROSS FLATS | 0.812 INCHES NOMINAL |
| SEAT MAJOR DIAMETER | 0.391 INCHES NOMINAL |
| HEIGHT ABOVE MOUNTING SURFACE | 2.625 INCHES NOMINAL |
| TOP TO TERMINAL CONTACT DISTANCE | 1.000 INCHES NOMINAL |
| TOP TO SHIELD THREAD DISTANCE | 0.094 INCHES NOMINAL |
| SHIELD THREAD LENGTH | 0.250 INCHES NOMINAL |
| BARREL INSIDE DIAMETER | 0.468 INCHES NOMINAL |
| TERMINAL SLEEVE INSIDE DIAMETER | 0.375 INCHES NOMINAL |