| MATERIAL | STEEL |
| END HARDNESS RATING | 57.0 ROCKWELL C MINIMUM AND |
| 63.0 ROCKWELL C MAXIMUM |
| END CASEHARDENING INDICATOR | CASEHARDENED |
| BODY OUTSIDE DIAMETER | 0.375 INCHES NOMINAL |
| OVERALL LENGTH | 12.688 INCHES NOMINAL |
| STYLE DESIGNATOR | SPHERICAL, UNDERCUT OPTIONAL FLAT FIRST END |
| CUP W/SHOULDER AND CHAMFER SECOND END |
| CHAMFER ANGLE IN DEG | 77.5 SECOND END |
| SHOULDER LENGTH | 0.062 INCHES NOMINAL SECOND END |
| CHAMFER LENGTH | 0.281 INCHES NOMINAL SECOND END |
| UNDERCUT DIAMETER | 0.365 INCHES MINIMUM FIRST END |
| 0.370 INCHES MAXIMUM SECOND END |
| UNDERCUT WIDTH | 0.109 INCHES MINIMUM FIRST END |
| 0.125 INCHES MAXIMUM SECOND END |
| END LENGTH | 0.3085 INCHES MINIMUM AND |
| 0.3165 INCHES MAXIMUM FIRST END |
| 0.344 INCHES NOMINAL SECOND END |
| END LARGEST DIAMETER | 0.382 INCHES MINIMUM AND |
| 0.386 INCHES MAXIMUM FIRST END |
| 0.500 INCHES NOMINAL SECOND END |
| FLAT DIAMETER | 0.125 INCHES NOMINAL FIRST END |
| END SPHERICAL RADIUS | 0.191 INCHES MINIMUM AND |
| 0.193 INCHES MAXIMUM FIRST END |
| 0.1865 INCHES MINIMUM AND |
| 0.1885 INCHES MAXIMUM SECOND END |
| SPHERICAL RADIUS DEPTH | 0.209 INCHES NOMINAL SECOND END |
| BODY TYPE | TUBULAR |
| FSC APPLICATION DATA | GASOLINE ENGINE,NONAIRCRAFT |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 71772 |
| DESIGN CONTROL REFERENCE | I18-1908 |