| ELECTRODE STYLE | SINGLE FLAT SHELL GROUND ELECTRODE (SEE ALSO STYLE 4) |
| BODY STYLE | UNSHIELDED, THREADED POST, GASKET SEAT |
| HEIGHT ABOVE MOUNTING SURFACE | 2.312 INCHES NOMINAL |
| NONDEFINITIVE SPEC/STD DATA | 3 TYPE AND B CLASS |
| PRESSURE RATING | 300.0 POUNDS PER SQUARE INCH MINIMUM AND 325.0 POUNDS PER SQUARE INCH MAXIMUM MEAN EFFECTIVE |
| REACH LENGTH | 0.500 INCHES NOMINAL |
| SEAT MAJOR DIAMETER | 1.000 INCHES MAXIMUM |
| SPECIAL FEATURES | COMMERCIAL-INDUSTRIAL STYLE |
| WIDTH ACROSS FLATS | 0.875 INCHES NOMINAL |
| TEST DATA DOCUMENT | 81348-WS506 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| USAGE DESIGN | ENGINE OTHER THAN AIRCRAFT |