| USAGE DESIGN | ENGINE OTHER THAN AIRCRAFT |
| ELECTRODE STYLE | SINGLE FLAT SHELL GROUND ELECTRODE (SEE ALSO STYLE 4) |
| BODY STYLE | UNSHIELDED,SOLID OR THREADED POST,GASKET SEAT |
| PROPRIETARY CHARACTERISTICS | PACS |
| MEAN EFFECTIVE PRESSURE RATING | 200.0 POUNDS PER SQUARE INCH NOMINAL |
| NONDEFINITIVE SPEC/STD DATA | 3 TYPE AND B CLASS |
| REACH LENGTH | 0.500 INCHES NOMINAL |
| SEAT MAJOR DIAMETER | 0.810 INCHES MAXIMUM |
| SPECIAL FEATURES | SHELL THD 0.437-0.472 LENGTH-12MM |
| WIDTH ACROSS FLATS | 0.812 INCHES NOMINAL |
| THREAD SIZE AND SERIES/TYPE DESIGNATOR AND LOCATION | 14-1.25MM BASE |