| BODY STYLE | ELECTRICALLY SHIELDED, FULL INSULATOR, GASKET SEAT |
| USAGE DESIGN | ENGINE OTHER THAN AIRCRAFT |
| ELECTRODE STYLE | SINGLE FLAT SHELL GROUND ELECTRODE (SEE ALSO STYLE 4) |
| THREAD SIZE AND SERIES/TYPE DESIGNATOR | 5/8-24 UNEF SHIELD |
| REACH LENGTH | 0.375 INCHES NOMINAL |
| WIDTH ACROSS FLATS | 0.812 INCHES NOMINAL |
| SEAT MAJOR DIAMETER | 0.775 INCHES MAXIMUM |
| HEIGHT ABOVE MOUNTING SURFACE | 2.625 INCHES NOMINAL |
| TOP TO TERMINAL CONTACT DISTANCE | 1.125 INCHES NOMINAL |
| TOP TO SHIELD THREAD DISTANCE | 0.125 INCHES NOMINAL |
| SHIELD THREAD LENGTH | 0.375 INCHES NOMINAL |
| TERMINAL SLEEVE INSIDE DIAMETER | 0.312 INCHES NOMINAL |
| MEAN EFFECTIVE PRESSURE RATING | 140.0 POUNDS PER SQUARE INCH NOMINAL |
| DC RESISTANCE RATING IN OHMS | 10000.0 NOMINAL |
| NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND |
| A CLASS |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81348 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | WS506 |