| STYLE DESIGNATOR | PROTRUDING HUB |
| PITCH DIAMETER | 0.5625 INCHES NOMINAL |
| NOMINAL OUTSIDE DIAMETER | 0.624 INCHES |
| FACE NOMINAL WIDTH | 0.287 INCHES |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.620 INCHES FIRST END |
| BORE STYLE | INVOLUTE SPLINE BOTH ENDS |
| BORE NOMINAL DIAMETER | 0.3490 INCHES BOTH ENDS |
| SPLINE QUANTITY | 12 BOTH ENDS |
| SPLINE PITCH DIAMETER | 0.3000 INCHES NOMINAL BOTH ENDS |
| HUB STYLE DESIGNATOR | 2 GROOVES FIRST END |
| HUB NOMINAL DIAMETER | 0.5000 INCHES FIRST END |
| FIRST GROOVE NOMINAL WIDTH | 0.6500 INCHES FIRST END |
| FIRST GROOVE NOMINAL DIAMETER | 0.4665 INCHES FIRST END |
| NOMINAL DISTANCE FROM END TO FIRST GROOVE | 0.0800 INCHES FIRST END |
| SECOND GROOVE NOMINAL WIDTH | 0.0500 INCHES FIRST END |
| SECOND GROOVE NOMINAL DIAMETER | 0.4800 INCHES FIRST END |
| NOMINAL DISTANCE FROM END TO SECOND GROOVE | 0.5700 INCHES FIRST END |
| BODY STYLE | PLAIN, SOLID |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 66503 |
| DESIGN CONTROL REFERENCE | 3024-548 |
| MATERIAL | STEEL OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5630 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS 5613 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| HARDNESS RATING | 55.0 ROCKWELL C MINIMUM AND |
| 60.0 ROCKWELL C MAXIMUM OVERALL |
| TEETH QUANTITY | 18 |
| TOOTH FORM | STANDARD |
| PRESSURE ANGLE | 20.0000 DEGREES |
| PRECISION CLASSIFICATION | QUALITY NUMBER 10 |
| BACKLASH DESIGNATION | GRADE B |