| DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | 0.315 INCHES NOMINAL |
| EXTERNAL PREBENT KEY LENGTH | 0.159 INCHES NOMINAL |
| EXTERNAL PREBENT KEY WIDTH | 0.156 INCHES NOMINAL |
| EXTERNAL STRAIGHT KEY WIDTH | 0.125 INCHES NOMINAL |
| HOLE DIAMETER | 0.328 INCHES NOMINAL |
| MATERIAL THICKNESS | 0.060 INCHES NOMINAL |
| MATERIAL | STEEL COMP 1008 OR STEEL COMP 1009 OR STEEL COMP 1015 OR STEEL COMP 1018 OR STEEL COMP 1020 OVERALL |
| OUTSIDE DIAMETER | 0.625 INCHES NOMINAL |
| OVERALL DISTANCE INCLUDING KEYS | 0.719 INCHES NOMINAL |
| STYLE DESIGNATOR | KEY |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | TT-C-490,TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ZINC AND PHOSPHATE OVERALL |