| CIRCLE DIAMETER | 0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| HARDNESS RATING | 38.00 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL |
| KEY CHAMFER ANGLE | 45.0 DEGREES NOMINAL |
| KEY CHAMFER LENGTH | 0.008 INCHES MINIMUM AND 0.012 INCHES MAXIMUM |
| KEY HEIGHT | 0.198 INCHES MINIMUM AND 0.203 INCHES MAXIMUM |
| KEY SIZE DESIGNATION | WOODRUFF 3 |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A322, GRADE 4130 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A322, GRADE 8630 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| STARTING EDGE SHAPE | CHAMFERED |
| STYLE DESIGNATOR | ROUND BOTTOM |
| THICKNESS | 0.1250 INCHES MINIMUM AND 0.1260 INCHES MAXIMUM |