| DRILLED HOLE DIAMETER | 0.515 INCHES MINIMUM AND 0.530 INCHES MAXIMUM |
| BOLT CIRCLE DIAMETER | 12.375 INCHES NOMINAL |
| BORE DIAMETER | 11.375 INCHES NOMINAL |
| BORE LENGTH | 1.750 INCHES NOMINAL |
| BORE TYPE | STRAIGHT |
| COUNTERBORE DEPTH | 0.625 INCHES NOMINAL AND 0.500 INCHES NOMINAL |
| COUNTERBORE DIAMETER | 11.375 INCHES NOMINAL AND 15.750 INCHES NOMINAL |
| COUNTERBORE LOCATION | BOTH ENDS |
| DESIGN FORM | PLAIN |
| FURNISHED ITEMS | COUNTERBORE |
| FACE WIDTH | 1.719 INCHES MINIMUM AND 1.781 INCHES MAXIMUM |
| HARDNESS RATING TEST METHOD | ROCKWELL |
| HOLE LOCATION | ON SPROCKET BODY |
| OUTSIDE DIAMETER | 21.688 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-626, COMP 4150, 8750 OR 1345 FED SPEC ALL MATERIAL RESPONSES |
| MATERIAL | STEEL COMP 1345 OR STEEL COMP 4150 OR STEEL COMP 8750 |
| METALLIC HARDNESS RATING AND LOCATION | 60.0 ROCKWELL C MAXIMUM BODY |
| PITCH DIAMETER | 18.850 INCHES NOMINAL |
| SECURING HOLE QUANTITY | 10 |
| SECURING LOCATION | BOTH ENDS |
| SECURING METHOD | DRILLED HOLE |
| STYLE DESIGNATOR | PLAIN |
| SURFACE TREATMENT | ENAMEL |
| TEETH ROW QUANTITY | 1 |
| TEETH HARDNESS RATING | 55.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM |
| TEETH QUANTITY PER ROW | 10 |
| TOOTH PITCH | 5.750 INCHES NOMINAL |