| ATTACHMENT METHOD | MOUNTING HOLE |
| BODY STYLE | WEBBED, OFFSET, SOLID |
| BODY RECESS NOMINAL DEPTH | 1.000 INCHES SECOND END |
| BOLT HOLE CIRCLE NOMINAL DIAMETER | 5.250 INCHES AXIALLY THROUGH HUB, FIRST END |
| BORE NOMINAL DIAMETER | 4.3750 INCHES BOTH ENDS |
| BORE STYLE | PLAIN BOTH ENDS |
| COUNTERBORE NOMINAL DEPTH | 0.187 INCHES FIRST END |
| COUNTERBORE NOMINAL DIAMETER | 6.251 INCHES FIRST END |
| FACE NOMINAL WIDTH | 1.250 INCHES |
| HARDNESS RATING | 10.0 ROCKWELL C MINIMUM AND 13.0 ROCKWELL C MAXIMUM OVERALL |
| HELIX ANGLE | 25.8167 DEGREES |
| HUB NOMINAL DIAMETER | 6.750 INCHES FIRST END |
| HUB STYLE DESIGNATOR | PLAIN FIRST END |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-890,CLASS B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| MOUNTING HOLE THREAD QUANTITY PER INCH | 24 AXIALLY THROUGH HUB, FIRST END |
| MOUNTING HOLE THREAD SERIES DESIGNATOR | UNF AXIALLY THROUGH HUB, FIRST END |
| MOUNTING HOLE TYPE AND QUANTITY | 4 PLAIN AND 4 THREADED AXIALLY THROUGH HUB, FIRST END |
| MOUNTING HOLE NOMINAL DIAMETER | 0.500 INCHES AXIALLY THROUGH HUB, FIRST END |
| MOUNTING HOLE NOMINAL THREAD SIZE | 0.375 INCHES AXIALLY THROUGH HUB, FIRST END |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.187 INCHES FIRST END |
| NOMINAL OVERALL LENGTH | 1.438 INCHES |
| NOMINAL OUTSIDE DIAMETER | 8.874 INCHES |
| PITCH DIAMETER | 8.6250 INCHES NOMINAL |
| PRESSURE ANGLE | 14.5000 DEGREES |
| SPECIAL FEATURES | FIGURE O STAMPED ON SIDE OF GEAR FACE ON CENTER LINE OF TOOTH SPACE ON UPPER VERTICAL CENTER LINE |
| STYLE DESIGNATOR | PROTRUDING HUB, RECESSED BODY |
| TEETH QUANTITY | 69 |
| TEETH TYPE | SINGLE HELIX |
| TOOTH FORM | STANDARD |
| TOOTH DIRECTION | LEFT |