| EXTERNAL PREBENT KEY LENGTH | 0.050 INCHES NOMINAL |
| EXTERNAL PREBENT KEY WIDTH | 0.108 INCHES MINIMUM AND 0.112 INCHES MAXIMUM |
| HOLE DIAMETER | 0.471 INCHES NOMINAL |
| INTERNAL STRAIGHT KEY WIDTH | 0.062 INCHES MINIMUM AND 0.066 INCHES MAXIMUM |
| MATERIAL THICKNESS | 0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM |
| III MATERIAL | STEEL CORROSION RESISTING OVERALL |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | WASHER,LOCK,MS21340 & MS3186 NUTS,INT/EXT KEY |
| PROPRIETARY CHARACTERISTICS | PACS |
| OUTSIDE DIAMETER | 0.821 INCHES MINIMUM AND 0.831 INCHES MAXIMUM |
| STYLE DESIGNATOR | KEY |
| SURFACE TREATMENT | PASSIVATE OVERALL |