| EXTENDED WASHER THICKNESS | 0.025 INCHES MINIMUM AND 0.030 INCHES MAXIMUM |
| EXTENDED WASHER DIAMETER | 0.437 INCHES NOMINAL |
| FASTENER LENGTH | 2.079 INCHES MINIMUM AND 2.126 INCHES MAXIMUM |
| GRIP DIAMETER | 0.188 INCHES MINIMUM AND 0.189 INCHES MAXIMUM |
| GRIP LENGTH | 1.625 INCHES NOMINAL |
| HEAD DIAMETER | 0.375 INCHES NOMINAL |
| HEAD HEIGHT | 0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM |
| HEAD STYLE | ROUND EXTENDED WASHER |
| INTERNAL DRIVE STYLE | CRUCIFORM RIBBED |
| MATERIAL | IRON ALLOY 660 OVERALL |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW, WASHER HEAD, CLOSE TOLERANCE |
| PROPRIETARY CHARACTERISTICS | PACS |
| MINIMUM TENSILE STRENGTH | 9500 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| SURFACE TREATMENT | PASSIVATE OR CADMIUM OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.469 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES DESIGNATOR | UNJF |