| ATTACHMENT METHOD | MOUNTING HOLE |
| BODY STYLE | PLAIN, SOLID |
| FACE NOMINAL WIDTH | 0.875 INCHES |
| FLANGE NOMINAL DIAMETER | 10.250 INCHES |
| FLANGE NOMINAL THICKNESS | 0.500 INCHES |
| MATERIAL | COPPER ALLOY OVERALL |
| MOUNTING HOLE TYPE AND QUANTITY | 12 THREADED AXIALLY THROUGH FLANGE |
| MOUNTING HOLE NOMINAL THREAD SIZE | 0.3120 INCHES AXIALLY THROUGH FLANGE |
| MOUNTING HOLE THREAD SERIES DESIGNATOR | UNF AXIALLY THROUGH FLANGE |
| NOMINAL OUTSIDE DIAMETER | 8.8333 INCHES |
| PITCH DIAMETER | 8.5000 INCHES NOMINAL |
| PRESSURE ANGLE | 30.5000 DEGREES |
| REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | AS DIFFERENTIATED BY TYPE 321 |
| STYLE DESIGNATOR | FLANGED RING |
| TEETH QUANTITY | 51 |
| TEETH TYPE | SPUR |
| TOOTH FORM | STANDARD |