| BODY STYLE | ELECTRICALLY SHIELDED, FULL INSULATOR, GASKET SEAT |
| USAGE DESIGN | ENGINE OTHER THAN AIRCRAFT |
| ELECTRODE STYLE | SINGLE "J" TYPE GROUND ELECTRODE (SEE ALSO STYLE 1 & 17) |
| THREAD SIZE AND SERIES/TYPE DESIGNATOR | 9/16-27 UNS SHIELD |
| REACH LENGTH | 0.500 INCHES NOMINAL |
| WIDTH ACROSS FLATS | 1.000 INCHES NOMINAL |
| SEAT MAJOR DIAMETER | 0.943 INCHES NOMINAL |
| HEIGHT ABOVE MOUNTING SURFACE | 2.625 INCHES NOMINAL |
| TOP TO TERMINAL CONTACT DISTANCE | 1.000 INCHES NOMINAL |
| SHIELD THREAD LENGTH | 0.625 INCHES NOMINAL |
| TERMINAL SLEEVE INSIDE DIAMETER | 0.380 INCHES NOMINAL |
| MEAN EFFECTIVE PRESSURE RATING | 234.0 POUNDS PER SQUARE INCH MINIMUM AND |
| 286.0 POUNDS PER SQUARE INCH MAXIMUM |
| DC RESISTANCE RATING IN OHMS | 10000.0 NOMINAL |