| ELECTRODE STYLE | TWO FLAT GROUND ELECTRODE |
| BODY STYLE | ELECTRICALLY SHIELDED, FULL INSULATOR, GASKET SEAT |
| HEIGHT ABOVE MOUNTING SURFACE | 2.690 INCHES NOMINAL |
| PRESSURE RATING | 230.0 POUNDS PER SQUARE INCH (PSI) NOMINAL MEAN EFFECTIVE |
| REACH LENGTH | 0.500 INCHES NOMINAL |
| SEAT MAJOR DIAMETER | 0.790 INCHES NOMINAL |
| SHIELD THREAD LENGTH | 0.250 INCHES NOMINAL |
| TERMINAL SLEEVE INSIDE DIAMETER | 0.378 INCHES MINIMUM AND 0.388 INCHES MAXIMUM |
| THREAD SIZE AND SERIES/TYPE DESIGNATOR | 5/8-24 UNEF SHIELD |
| TOP TO SHIELD THREAD DISTANCE | 0.125 INCHES NOMINAL |
| TOP TO TERMINAL CONTACT DISTANCE | 1.000 INCHES MINIMUM AND 1.070 INCHES MAXIMUM |
| USAGE DESIGN | ENGINE OTHER THAN AIRCRAFT |
| WIDTH ACROSS FLATS | 0.813 INCHES NOMINAL |