| STYLE DESIGNATOR | WEBBED OR SPOKED |
| OUTSIDE DIAMETER | 3.500 INCHES NOMINAL |
| OVERALL LENGTH | 1.312 INCHES NOMINAL |
| PITCH DIAMETER | 2.875 INCHES MINIMUM AND |
| 2.938 INCHES MAXIMUM |
| FACE WIDTH | 1.094 INCHES NOMINAL |
| DESIGN FORM | WEBBED |
| WEB/SPOKE RELATIONSHIP TO FACE CENTERLINE | NOT OFFSET |
| LIGHTENING HOLE | NOT INCLUDED |
| INTEGRAL COOLING VANE | NOT INCLUDED |
| MATERIAL AND LOCATION | IRON OVERALL |
| GROOVE SHAPE | V |
| GROOVE QUANTITY | 1 |
| GROOVE DEPTH | 0.812 INCHES NOMINAL |
| GROOVE WIDTH | 0.875 INCHES NOMINAL |
| V GROOVE ANGLE IN DEG | 38.0 |
| BORE FEATURE | INCLUDED |
| BEARINGS | NOT INCLUDED |
| BORE TYPE | STRAIGHT |
| BORE DIAMETER | 0.6685 INCHES MINIMUM AND |
| 0.6695 INCHES MAXIMUM |
| BORE LENGTH | 1.312 INCHES NOMINAL |
| COUNTERBORE FEATURE | NOT INCLUDED |
| KEYING FACILITY | INCLUDED |
| KEYING FACILITY TYPE | KEYWAY |
| QUANTITY | 1 |
| KEYWAY WIDTH | 0.126 INCHES MINIMUM AND |
| 0.128 INCHES MAXIMUM |
| DISTANCE FROM CENTER OF BORE TO BOTTOM OF KEYWAY | 0.40225 INCHES MINIMUM AND |
| 0.48750 INCHES MAXIMUM |
| PROTRUDING HUB CHARACTERISTIC | STEPPED |
| FIRST STEP FACE LARGEST DIAMETER AND LOCATION | 1.125 INCHES NOMINAL BOTH ENDS |
| FIRST STEP LENGTH AND LOCATION | 0.125 INCHES NOMINAL BOTH ENDS |
| HUB END OUTSIDE DIAMETER AND LOCATION | 1.000 INCHES MINIMUM AA END AND |
| 1.005 INCHES MAXIMUM AA END AND |
| 1.125 INCHES NOMINAL BB END |
| DISTANCE FROM OUTSIDE FLANGE/RIM TO HUB END AND LOCATION | 0.016 INCHES NOMINAL AA END AND |
| 0.203 INCHES NOMINAL BB END |
| SPLIT HUB FEATURE | NOT INCLUDED |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 16764 |
| DESIGN CONTROL REFERENCE | 1920381 |