| ELECTRODE STYLE | FOUR GAP GROUND ELECTRODE |
| BODY STYLE | ELECTRICALLY SHIELDED, FULL INSULATOR, GASKET SEAT |
| DC RESISTANCE RATING IN OHMS | 1000.0 NOMINAL |
| HEIGHT ABOVE MOUNTING SURFACE | 2.125 INCHES MINIMUM AND 2.375 INCHES MAXIMUM |
| PRESSURE RATING | 330.0 POUNDS PER SQUARE INCH NOMINAL MEAN EFFECTIVE |
| REACH LENGTH | 0.793 INCHES MINIMUM AND 0.813 INCHES MAXIMUM |
| SEAT MAJOR DIAMETER | 0.970 INCHES MAXIMUM |
| SHIELD THREAD LENGTH | 0.250 INCHES NOMINAL |
| WIDTH ACROSS FLATS | 0.875 INCHES NOMINAL |
| TERMINAL SLEEVE INSIDE DIAMETER | 0.290 INCHES MINIMUM AND 0.300 INCHES MAXIMUM |
| THREAD SIZE AND SERIES/TYPE DESIGNATOR | 5/8-24 UNEF SHIELD |
| TOP TO SHIELD THREAD DISTANCE | 0.105 INCHES MINIMUM AND 0.145 INCHES MAXIMUM |
| TOP TO TERMINAL CONTACT DISTANCE | 1.000 INCHES MINIMUM AND 1.070 INCHES MAXIMUM |
| USAGE DESIGN | ENGINE OTHER THAN AIRCRAFT |