| MATERIAL | ALUMINUM ALLOY 2024 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | ANODIZE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| TEETH QUANTITY | 184 |
| TOOTH FORM | STANDARD |
| PRESSURE ANGLE | 20.0000 DEGREES |
| PRECISION CLASSIFICATION | QUALITY NUMBER 10 OR |
| QUALITY NUMBER 11 |
| STYLE DESIGNATOR | HUBLESS |
| PITCH DIAMETER | 3.8333 INCHES NOMINAL |
| NOMINAL OUTSIDE DIAMETER | 3.875 INCHES |
| FACE NOMINAL WIDTH | 0.125 INCHES |
| BORE STYLE | W/COUNTERBORE COUNTERBORE, FIRST END |
| BORE NOMINAL DIAMETER | 0.640 INCHES COUNTERBORE, FIRST END |
| COUNTERBORE NOMINAL DEPTH | 0.031 INCHES COUNTERBORE, FIRST END |
| COUNTERBORE NOMINAL DIAMETER | 1.255 INCHES COUNTERBORE, FIRST END |
| BODY STYLE | PLAIN, SOLID |
| ATTACHMENT METHOD | MOUNTING HOLE |
| MOUNTING HOLE TYPE AND QUANTITY | 4 PLAIN AND |
| 3 PLAIN AXIALLY THROUGH BODY, FIRST END |
| MOUNTING HOLE NOMINAL DIAMETER | 0.128 INCHES AND |
| 0.177 INCHES AXIALLY THROUGH BODY, FIRST END |
| SPECIAL FEATURES | DRILLED HOLES 0.177 IN. DIA COUNTERBORED 7/16 IN. BY 1/16 IN. DEEP |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 63689 |
| DESIGN CONTROL REFERENCE | A135562 |