| MATERIAL | STEEL COMP 8620 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-16974 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| HARDNESS RATING | 58.0 ROCKWELL C MINIMUM AND |
| 60.0 ROCKWELL C MAXIMUM OVERALL |
| TEETH QUANTITY | 16 |
| TOOTH FORM | STANDARD |
| PRESSURE ANGLE | 20.0000 DEGREES |
| STYLE DESIGNATOR | HUBLESS |
| PITCH DIAMETER | 6.3900 INCHES MINIMUM AND |
| 6.4000 INCHES MAXIMUM |
| NOMINAL OUTSIDE DIAMETER | 7.039 INCHES |
| FACE NOMINAL WIDTH | 2.750 INCHES |
| BORE STYLE | W/ KEYWAY BOTH ENDS |
| BORE NOMINAL DIAMETER | 2.505 INCHES BOTH ENDS |
| KEYWAY NOMINAL WIDTH | 0.625 INCHES BOTH ENDS |
| NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM | 1.562 INCHES BOTH ENDS |
| BODY STYLE | PLAIN, SOLID |
| ATTACHMENT METHOD | MOUNTING HOLE |
| MOUNTING HOLE TYPE AND QUANTITY | 2 THREADED AXIALLY THROUGH BODY, FIRST END |
| MOUNTING HOLE THREAD SERIES DESIGNATOR | UNC AXIALLY THROUGH BODY, FIRST END |
| MOUNTING HOLE NOMINAL THREAD SIZE | 0.500 INCHES AXIALLY THROUGH BODY, FIRST END |
| MOUNTING HOLE THREAD QUANTITY PER INCH | 20 AXIALLY THROUGH BODY, FIRST END |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 89939 |
| DESIGN CONTROL REFERENCE | 13077 |