| DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | 0.298 INCHES MINIMUM AND 0.333 INCHES MAXIMUM |
| DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY | 0.154 INCHES MINIMUM AND 0.158 INCHES MAXIMUM |
| EXTERNAL PREBENT KEY LENGTH | 0.145 INCHES MINIMUM AND 0.165 INCHES MAXIMUM |
| EXTERNAL PREBENT KEY WIDTH | 0.122 INCHES MINIMUM AND 0.128 INCHES MAXIMUM |
| HOLE DIAMETER | 0.375 INCHES MINIMUM AND 0.379 INCHES MAXIMUM |
| INTERNAL STRAIGHT KEY WIDTH | 0.058 INCHES MINIMUM AND 0.062 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-613,HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL THICKNESS | 0.032 INCHES NOMINAL |
| MATERIAL | COPPER ALLOY 260 OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| OUTSIDE DIAMETER | 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM |
| OVERALL DISTANCE INCLUDING KEYS | 0.682 INCHES MINIMUM AND 0.687 INCHES MAXIMUM |
| STYLE DESIGNATOR | KEY |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |