| DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY | 0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| HOLE DIAMETER | 0.443 INCHES MINIMUM AND 0.453 INCHES MAXIMUM |
| INTERNAL KEY QUANTITY | 1 |
| INTERNAL STRAIGHT KEY WIDTH | 0.077 INCHES MINIMUM AND 0.087 INCHES MAXIMUM |
| MATERIAL THICKNESS | 0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 410 OVERALL |
| OUTSIDE DIAMETER | 0.630 INCHES MINIMUM AND 0.650 INCHES MAXIMUM |
| SPECIAL FEATURES | 50 SERRATIONS EQUALLY SPACED ON FACE OF WASHER |
| STYLE DESIGNATOR | KEY |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |