| HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM |
| HOLE DIAMETER | 0.256 INCHES MINIMUM AND 0.267 INCHES MAXIMUM |
| OUTSIDE DIAMETER | 0.460 INCHES MINIMUM AND 0.478 INCHES MAXIMUM |
| MATERIAL THICKNESS | 0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 1050 OR STEEL COMP 1053 OR STEEL COMP 1054 OR STEEL COMP 1055 OR STEEL COMP 1059 OR STEEL COMP 1060 OR STEEL COMP 1062 OR STEEL COMP 1064 OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | WASHER,LOCK,FLAT,INTERNAL TOOTH |
| SPECIFICATION/STANDARD DATA | 80205-NAS-35333 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| STYLE DESIGNATOR | FLAT INTERNAL TEETH |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS-C-81562, TYPE II, CLASS 6 NATIONAL STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ZINC OVERALL |