| ATTACHMENT METHOD | MOUNTING HOLE |
| BODY STYLE | WEBBED, SOLID |
| BOLT HOLE CIRCLE NOMINAL DIAMETER | 2.250 INCHES AXIALLY THROUGH BODY, FIRST END |
| BORE STYLE | TAPERED W/KEYWAY FIRST END |
| FACE NOMINAL WIDTH | 0.500 INCHES |
| HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OVERALL |
| HUB NOMINAL DIAMETER | 1.375 INCHES FIRST END |
| HUB NOMINAL DIAMETER | 1.375 INCHES SECOND END |
| HUB STYLE DESIGNATOR | PLAIN BOTH ENDS |
| KEYWAY NOMINAL WIDTH | 0.158 INCHES BOTH ENDS |
| MATERIAL DOCUMENT AND CLASSIFICATION | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4340 OVERALL |
| MOUNTING HOLE NOMINAL THREAD SIZE | 0.375 INCHES AXIALLY THROUGH BODY, FIRST END |
| MOUNTING HOLE THREAD QUANTITY PER INCH | 16 AXIALLY THROUGH BODY, FIRST END |
| MOUNTING HOLE THREAD SERIES DESIGNATOR | UNC AXIALLY THROUGH BODY, FIRST END |
| MOUNTING HOLE TYPE AND QUANTITY | 3 THREADED AXIALLY THROUGH BODY, FIRST END |
| NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM | 0.510 INCHES BOTH ENDS |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.156 INCHES SECOND END |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.469 INCHES FIRST END |
| NOMINAL OVERALL LENGTH | 1.125 INCHES |
| NOMINAL OUTSIDE DIAMETER | 4.921 INCHES |
| SPECIAL FEATURES | 45 DEG CHAMFER 3/16 IN. LG ON FIRST HUB END,45 DEG CHAMFER 1/32 IN. LG ON SECOND HUB END |
| PITCH DIAMETER | 4.8750 INCHES NOMINAL |
| PRESSURE ANGLE | 14.5000 DEGREES |
| STYLE DESIGNATOR | PROTRUDING HUBS |
| SURFACE TREATMENT | ZINC OVERALL |
| TAPER MAJOR NOMINAL DIAMETER | 0.926 INCHES FIRST END |
| TEETH QUANTITY | 78 |
| TOOTH FORM | STANDARD |