| HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM |
| HOLE DIAMETER | 0.512 INCHES MINIMUM AND 0.513 INCHES MAXIMUM |
| MATERIAL THICKNESS | 0.037 INCHES MINIMUM AND 0.045 INCHES MAXIMUM |
| MATERIAL | STEEL OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | LOCK WASHER, INTERNAL TOOTH |
| PROPRIETARY CHARACTERISTICS | PACS |
| OUTSIDE DIAMETER | 0.867 INCHES MINIMUM AND 0.900 INCHES MAXIMUM |
| OVERALL HEIGHT | 0.037 INCHES MINIMUM AND 0.045 INCHES MAXIMUM |
| STYLE DESIGNATOR | FLAT INTERNAL TEETH |
| SURFACE TREATMENT | ZINC OVERALL |