| CIRCLE DIAMETER | 2.115 INCHES MINIMUM AND 2.125 INCHES MAXIMUM |
| HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| KEY HEIGHT | 0.526 INCHES MINIMUM AND 0.531 INCHES MAXIMUM |
| KEY SIZE DESIGNATION | WOODRUFF 26 |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-624 FED SPEC ALL MATERIAL RESPONSES OR 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 2330 OVERALL |
| OVERALL LENGTH | 1.713 INCHES MINIMUM AND 1.723 INCHES MAXIMUM |
| STARTING EDGE RADIUS | 0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM |
| STARTING EDGE SHAPE | ROUND |
| STYLE DESIGNATOR | ROUND BOTTOM RELIEVED ENDS |
| THICKNESS | 0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM |