| ANGLE BETWEEN EXTERNAL KEYS | 58.0 DEGREES MINIMUM AND 62.0 DEGREES MAXIMUM |
| DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | 0.140 INCHES MINIMUM AND 0.145 INCHES MAXIMUM |
| EXTERNAL PREBENT KEY ANGLE | 15.0 DEGREES NOMINAL |
| EXTERNAL PREBENT KEY LENGTH | 0.050 INCHES NOMINAL |
| EXTERNAL PREBENT KEY WIDTH | 0.140 INCHES MINIMUM AND 0.145 INCHES MAXIMUM |
| EXTERNAL TAPERED KEY WIDTH | 0.320 INCHES MINIMUM AND 0.330 INCHES MAXIMUM |
| HEAT TREATMENT | STRESS RELIEVED |
| HOLE DIAMETER | 0.390 INCHES MINIMUM AND 0.395 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL THICKNESS | 0.028 INCHES MINIMUM AND 0.036 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 321 OVERALL |
| OUTSIDE DIAMETER | 0.560 INCHES MINIMUM AND 0.570 INCHES MAXIMUM |
| STYLE DESIGNATOR | 270 DEGREE LOCKING KEY |
| SURFACE FINISH | 32.0 MICROINCHES TOP |