| DISTANCE FROM MOUNTING HOLE CENTER TO END | 0.370 INCHES MINIMUM AND 0.530 INCHES MAXIMUM |
| FIRST FLAT LENGTH | 1.120 INCHES MINIMUM AND 1.180 INCHES MAXIMUM |
| FLAT HEIGHT | 0.123 INCHES MINIMUM AND 0.125 INCHES MAXIMUM |
| KEY CHAMFER ANGLE | 45.0 DEGREES NOMINAL |
| KEY CHAMFER LENGTH | 0.100 INCHES MINIMUM AND 0.140 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000,COND F MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| MOUNTING HOLE DEPTH | 0.123 INCHES MINIMUM AND 0.125 INCHES MAXIMUM |
| MOUNTING HOLE DIAMETER | 0.281 INCHES MINIMUM AND 0.288 INCHES MAXIMUM |
| MOUNTING HOLE TYPE AND QUANTITY | 1 PLAIN |
| OVERALL HEIGHT | 0.545 INCHES MINIMUM AND 0.555 INCHES MAXIMUM |
| OVERALL LENGTH | 1.380 INCHES MINIMUM AND 1.420 INCHES MAXIMUM |
| OVERALL WIDTH | 0.620 INCHES MINIMUM AND 0.625 INCHES MAXIMUM |
| STARTING EDGE SHAPE | CHAMFERED |
| STYLE DESIGNATOR | STEPPED |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-16173,GRADE 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |