| DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | 0.240 INCHES NOMINAL |
| EXTERNAL PREBENT KEY LENGTH | 0.032 INCHES NOMINAL |
| EXTERNAL PREBENT KEY WIDTH | 0.020 INCHES NOMINAL |
| HARDNESS RATING | 89.5 ROCKWELL B NOMINAL |
| HEAT TREATMENT | AS FABRICATED |
| HOLE DIAMETER | 0.188 INCHES MINIMUM AND 0.189 INCHES MAXIMUM |
| OUTSIDE DIAMETER | 0.438 INCHES NOMINAL |
| OVERALL DISTANCE INCLUDING KEYS | 0.531 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL THICKNESS | 0.037 INCHES MINIMUM AND 0.039 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 1561 OVERALL |
| STYLE DESIGNATOR | KEY |