| MATERIAL THICKNESS | 0.057 INCHES MINIMUM AND 0.069 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 4130 OVERALL |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | WASHER,PLAIN AND COUNTERSUNK |
| PROPRIETARY CHARACTERISTICS | PACS |
| OUTSIDE DIAMETER | 0.475 INCHES MINIMUM AND 0.495 INCHES MAXIMUM |
| RECESS ANGLE | 90.0 DEGREES MINIMUM AND 100.0 DEGREES MAXIMUM |
| RECESS DIAMETER | 0.347 INCHES MINIMUM AND 0.367 INCHES MAXIMUM |
| STYLE DESIGNATOR | RECESSED |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MS-QQ-P-416,TYPE 2,CLASS 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| HOLE DIAMETER | 0.266 INCHES MINIMUM AND 0.277 INCHES MAXIMUM |