| ATTACHMENT METHOD | MOUNTING HOLE |
| BODY STYLE | PLAIN, SOLID |
| BOLT HOLE CIRCLE NOMINAL DIAMETER | 1.120 INCHES AXIALLY THROUGH HUB, FIRST END |
| END NOMINAL DIAMETER | 0.772 INCHES BOTH ENDS |
| END NOMINAL LENGTH | 0.880 INCHES BOTH ENDS |
| FACE NOMINAL WIDTH | 1.250 INCHES |
| FIRST STEP NOMINAL LENGTH | 0.500 INCHES BOTH ENDS |
| FIRST STEP NOMINAL DIAMETER | 2.250 INCHES BOTH ENDS |
| HARDNESS RATING | 58.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM OVERALL |
| HUB NOMINAL DIAMETER | 1.772 INCHES BOTH ENDS |
| HUB STYLE DESIGNATOR | 2 STEPS FIRST END |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66,AISI/SAE FED STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 8620 OVERALL |
| MOUNTING HOLE TYPE AND QUANTITY | 4 THREADED AXIALLY THROUGH HUB, FIRST END |
| MOUNTING HOLE NOMINAL THREAD SIZE | 0.313 INCHES AXIALLY THROUGH HUB, FIRST END |
| MOUNTING HOLE THREAD QUANTITY PER INCH | 18 AXIALLY THROUGH HUB, FIRST END |
| MOUNTING HOLE THREAD SERIES DESIGNATOR | UNC AXIALLY THROUGH HUB, FIRST END |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 1.500 INCHES BOTH ENDS |
| NOMINAL OUTSIDE DIAMETER | 5.161 INCHES |
| PITCH DIAMETER | 4.8333 INCHES NOMINAL |
| PRESSURE ANGLE | 25.0000 DEGREES |
| SECOND STEP NOMINAL DIAMETER | 3.000 INCHES BOTH ENDS |
| SECOND STEP NOMINAL LENGTH | 0.120 INCHES BOTH ENDS |
| SPECIAL FEATURES | TWO MTG HOLES ON EACH END OF HUB 180 DEG APART |
| STYLE DESIGNATOR | PROTRUDING HUBS |
| TEETH QUANTITY | 29 |
| TOOTH FORM | STANDARD |