| DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | 0.350 INCHES MINIMUM AND 0.370 INCHES MAXIMUM |
| EXTERNAL PREBENT KEY LENGTH | 0.270 INCHES MINIMUM AND 0.290 INCHES MAXIMUM |
| EXTERNAL PREBENT KEY WIDTH | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM |
| HARDNESS RATING | 76.0 ROCKWELL SUPERFICIAL 30-T MAXIMUM |
| HOLE DIAMETER | 0.193 INCHES MINIMUM AND 0.195 INCHES MAXIMUM |
| OVERALL DISTANCE INCLUDING KEYS | 0.549 INCHES MINIMUM AND 0.555 INCHES MAXIMUM |
| OVERALL WIDTH | 0.300 INCHES MINIMUM AND 0.320 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL THICKNESS | 0.019 INCHES MINIMUM AND 0.025 INCHES MAXIMUM |
| MATERIAL | STEEL OVERALL |
| STYLE DESIGNATOR | KEY |