| HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM |
| HOLE DIAMETER | 0.535 INCHES MINIMUM AND 0.540 INCHES MAXIMUM |
| OUTSIDE DIAMETER | 0.940 INCHES MINIMUM AND 0.950 INCHES MAXIMUM |
| MATERIAL THICKNESS | 0.071 INCHES MINIMUM AND 0.085 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 4130 OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | WASHER,COUNTERSUNK AND PLAIN 1/32 OVERSIZED |
| RECESS ANGLE | 44.0 DEGREES MINIMUM AND 46.0 DEGREES MAXIMUM |
| RECESS DIAMETER | 0.650 INCHES MINIMUM AND 0.660 INCHES MAXIMUM |
| STYLE DESIGNATOR | RECESSED |
| SURFACE TREATMENT | CADMIUM OVERALL |