| MATERIAL | COPPER ALLOY OVERALL |
| SURFACE TREATMENT | OXIDE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-STD-171,FINISH NO. 3.2 MIL STD SINGLE TREATMENT RESPONSE OVERALL |
| TEETH QUANTITY | 16 |
| TEETH TYPE | SPUR |
| TOOTH FORM | STANDARD |
| PRESSURE ANGLE | 20.0000 DEGREES |
| STYLE DESIGNATOR | PLAIN RING |
| PITCH DIAMETER | 4.0000 INCHES NOMINAL |
| NOMINAL OVERALL LENGTH | 0.250 INCHES |
| NOMINAL OUTSIDE DIAMETER | 4.750 INCHES |
| BODY STYLE | PLAIN, SOLID |
| ATTACHMENT METHOD | MOUNTING HOLE |
| MOUNTING HOLE TYPE AND QUANTITY | 6 COUNTERBORED AXIALLY THROUGH BODY, FIRST END |
| MOUNTING HOLE NOMINAL DIAMETER | 0.136 INCHES AXIALLY THROUGH BODY, FIRST END |
| BOLT HOLE CIRCLE NOMINAL DIAMETER | 4.468 INCHES AXIALLY THROUGH BODY, FIRST END |