| BODY STYLE | ELECTRICALLY SHIELDED, PARTIAL INSULATOR, GASKET SEAT |
| USAGE DESIGN | ENGINE OTHER THAN AIRCRAFT |
| ELECTRODE STYLE | TWO FLAT GROUND ELECTRODE |
| THREAD SIZE AND SERIES/TYPE DESIGNATOR | 5/8-24 UNEF SHIELD |
| REACH LENGTH | 0.500 INCHES NOMINAL |
| WIDTH ACROSS FLATS | 0.875 INCHES NOMINAL |
| SEAT MAJOR DIAMETER | 0.970 INCHES NOMINAL |
| HEIGHT ABOVE MOUNTING SURFACE | 2.680 INCHES NOMINAL |
| TOP TO TERMINAL CONTACT DISTANCE | 1.000 INCHES NOMINAL |
| TOP TO SHIELD THREAD DISTANCE | 0.145 INCHES NOMINAL |
| SHIELD THREAD LENGTH | 0.250 INCHES NOMINAL |
| BARREL INSIDE DIAMETER | 0.469 INCHES NOMINAL |
| TERMINAL SLEEVE INSIDE DIAMETER | 0.388 INCHES NOMINAL |
| MEAN EFFECTIVE PRESSURE RATING | 140.0 POUNDS PER SQUARE INCH MINIMUM AND |
| 200.0 POUNDS PER SQUARE INCH MAXIMUM |
| NONDEFINITIVE SPEC/STD DATA | 1 TYPE |