| BODY STYLE | ELECTRICALLY SHIELDED, PARTIAL INSULATOR, GASKET SEAT |
| USAGE DESIGN | AIRCRAFT ENGINE |
| ELECTRODE STYLE | TRIPLE GAP GROUND ELECTRODE |
| THREAD SIZE AND SERIES/TYPE DESIGNATOR | 5/8-24 UNEF SHIELD |
| REACH LENGTH | 0.527 INCHES MINIMUM AND |
| 0.562 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.870 INCHES MINIMUM AND |
| 0.878 INCHES MAXIMUM |
| SEAT MAJOR DIAMETER | 0.965 INCHES NOMINAL |
| HEIGHT ABOVE MOUNTING SURFACE | 2.500 INCHES MINIMUM AND |
| 2.624 INCHES MAXIMUM |
| TOP TO TERMINAL CONTACT DISTANCE | 1.000 INCHES MINIMUM AND |
| 1.070 INCHES MAXIMUM |
| TOP TO SHIELD THREAD DISTANCE | 0.120 INCHES NOMINAL |
| SHIELD THREAD LENGTH | 0.250 INCHES NOMINAL |
| BARREL INSIDE DIAMETER | 0.459 INCHES MINIMUM AND |
| 0.479 INCHES MAXIMUM |
| TERMINAL SLEEVE INSIDE DIAMETER | 0.378 INCHES MINIMUM AND |
| 0.388 INCHES MAXIMUM |
| DC RESISTANCE RATING IN OHMS | 1000.0 NOMINAL |
| SPECIAL FEATURES | ITEM IS USED ON ARMY TRUCKS |