| ELECTRODE STYLE | SINGLE GROUND ELECTRODE (SEE ALSO STYLE 1) |
| BODY STYLE | UNSHIELDED,SOLID OR THREADED POST,TAPERED SEAT |
| PROPRIETARY CHARACTERISTICS | PACS |
| MEAN EFFECTIVE PRESSURE RATING | 235.0 POUNDS PER SQUARE INCH NOMINAL |
| NONDEFINITIVE SPEC/STD DATA | 3 TYPE AND B CLASS |
| REACH LENGTH | 0.455 INCHES MINIMUM AND 0.475 INCHES MAXIMUM |
| SEAT MAJOR DIAMETER | 0.775 INCHES MINIMUM AND 0.810 INCHES MAXIMUM |
| SPECIAL FEATURES | EXTENDED-TIP STYLE |
| WIDTH ACROSS FLATS | 0.812 INCHES NOMINAL |
| THREAD SIZE AND SERIES/TYPE DESIGNATOR AND LOCATION | 18-1.5MM BASE |
| USAGE DESIGN | ENGINE OTHER THAN AIRCRAFT |