| MATERIAL | STEEL COMP 4140 OR |
| STEEL COMP 5140 OR |
| STEEL COMP 8640 OR |
| STEEL COMP 8740 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-624 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| HARDNESS RATING | 29.0 ROCKWELL C MINIMUM AND |
| 34.0 ROCKWELL C MAXIMUM OVERALL |
| TEETH QUANTITY | 30 |
| TEETH TYPE | STRAIGHT |
| PRESSURE ANGLE | 20.0000 DEGREES |
| PITCH ANGLE | 61.9333 DEGREES |
| PRECISION CLASSIFICATION | QUALITY NUMBER 12 |
| STYLE DESIGNATOR | PERIPHERAL FACE, BACK HUB PROTRUDING |
| PITCH DIAMETER | 3.0000 INCHES NOMINAL |
| NOMINAL OVERALL LENGTH | 1.440 INCHES |
| NOMINAL OUTSIDE DIAMETER | 3.063 INCHES |
| FACE NOMINAL WIDTH | 0.375 INCHES |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 1.000 INCHES SECOND END |
| BORE STYLE | W/COUNTERBORE COUNTERBORE, FIRST END |
| W/STEPPED COUNTERBORE COUNTER BORE, SECOND END |
| BORE NOMINAL DIAMETER | 1.120 INCHES COUNTERBORE, FIRST END |
| 1.120 INCHES COUNTER BORE, SECOND END |
| COUNTERBORE NOMINAL DEPTH | 0.375 INCHES FIRST COUNTERBORE, SECOND END |
| 0.125 INCHES SECOND COUNTERBORE, SECOND END |
| 0.630 INCHES COUNTERBORE, FIRST END |
| COUNTERBORE NOMINAL DIAMETER | 1.187 INCHES FIRST COUNTERBORE, SECOND END |
| 1.690 INCHES SECOND COUNTERBORE, SECOND END |
| 1.187 INCHES COUNTERBORE, FIRST END |
| HUB STYLE DESIGNATOR | PLAIN SECOND END |
| HUB NOMINAL DIAMETER | 2.628 INCHES SECOND END |
| BODY STYLE | PLAIN, SOLID |