| ATTACHMENT METHOD | MOUNTING HOLE |
| BACKLASH DESIGNATION | GRADE A |
| BODY RECESS NOMINAL DEPTH | 0.270 INCHES FIRST END |
| BODY STYLE | WEBBED, SOLID |
| BOLT HOLE CIRCLE NOMINAL DIAMETER | 1.760 INCHES TRANSVERSELY THROUGH FACE |
| BORE NOMINAL DIAMETER | 1.250 INCHES BOTH ENDS |
| BORE STYLE | W/ KEYWAY BOTH ENDS |
| FACE NOMINAL WIDTH | 0.904 INCHES |
| KEYWAY NOMINAL WIDTH | 0.252 INCHES BOTH ENDS |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-I-652,CL 30 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON CAST UNS F12101 OVERALL |
| PITCH DIAMETER | 2.5842 INCHES NOMINAL |
| MOUNTING HOLE NOMINAL DIAMETER | 0.250 INCHES TRANSVERSELY THROUGH FACE |
| MOUNTING HOLE THREAD QUANTITY PER INCH | 20 TRANSVERSELY THROUGH FACE |
| MOUNTING HOLE THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH FACE |
| MOUNTING HOLE TYPE AND QUANTITY | 2 THREADED TRANSVERSELY THROUGH FACE |
| NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM | 0.745 INCHES BOTH ENDS |
| NOMINAL OUTSIDE DIAMETER | 2.942 INCHES |
| PRECISION CLASSIFICATION | QUALITY NUMBER 12 |
| STYLE DESIGNATOR | HUBLESS, RECESSED BODY |
| TEETH QUANTITY | 19 |
| TEETH TYPE | SINGLE HELIX |
| TOOTH FORM | STANDARD |
| TOOTH DIRECTION | LEFT |