| ATTACHMENT METHOD | MOUNTING HOLE |
| BODY RECESS NOMINAL DEPTH | 0.312 INCHES FIRST END |
| BODY RECESS NOMINAL DEPTH | 0.313 INCHES SECOND END |
| BODY STYLE | WEBBED, SOLID |
| BOLT HOLE CIRCLE NOMINAL DIAMETER | 1.875 INCHES AXIALLY THROUGH BODY, FIRST END |
| BORE STYLE | PLAIN BOTH ENDS |
| BORE NOMINAL DIAMETER | 1.125 INCHES BOTH ENDS |
| FACE NOMINAL WIDTH | 1.125 INCHES |
| HARDNESS RATING | 50.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM OVERALL |
| HELIX ANGLE | 29.8333 DEGREES |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66,AISI/SAE 4320,4615 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4320 AND STEEL COMP 4615 OVERALL |
| MOUNTING HOLE NOMINAL DIAMETER | 0.344 INCHES AXIALLY THROUGH BODY, FIRST END |
| MOUNTING HOLE TYPE AND QUANTITY | 4 PLAIN AXIALLY THROUGH BODY, FIRST END |
| NOMINAL OUTSIDE DIAMETER | 4.187 INCHES |
| PITCH DIAMETER | 4.0317 INCHES MINIMUM AND 4.0337 INCHES MAXIMUM |
| PRESSURE ANGLE | 20.0000 DEGREES |
| STYLE DESIGNATOR | HUBLESS, RECESSED BODY |
| TEETH QUANTITY | 42 |
| TEETH TYPE | SINGLE HELIX |
| TOOTH DIRECTION | LEFT |
| TOOTH FORM | STANDARD |