| DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY | 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM |
| HOLE DIAMETER | 0.788 INCHES MINIMUM AND 0.798 INCHES MAXIMUM |
| INTERNAL KEY QUANTITY | 2 |
| INTERNAL STRAIGHT KEY WIDTH | 0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-18729 COND N MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5626 COND C4 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| MATERIAL THICKNESS | 0.105 INCHES MINIMUM AND 0.125 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 4130 OR STEEL COMP 4140 OVERALL |
| MINIMUM TENSILE STRENGTH | 150000 POUNDS PER SQUARE INCH |
| OUTSIDE DIAMETER | 1.810 INCHES MINIMUM AND 1.820 INCHES MAXIMUM |
| STYLE DESIGNATOR | KEY |
| SURFACE FINISH | 63.0 MICROINCHES ALL SURFACES |