| HEAD DIAMETER | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| HEAD HEIGHT | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| HEAD STYLE | FLAT CHAMFER |
| INTERNAL DRIVE STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5731 OR 5737 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW,ASSEMBLED WASHER-HEX SOCKET,CRES |
| PRIMARY WASHER MATERIAL THICKNESS | 0.063 INCHES NOMINAL |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.463 INCHES MINIMUM AND 0.483 INCHES MAXIMUM |
| PRIMARY WASHER STYLE | SPLIT HELICAL RING |
| PROPRIETARY CHARACTERISTICS | PACS |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| SECONDARY WASHER OUTSIDE DIAMETER | 0.489 INCHES MAXIMUM |
| SECONDARY WASHER STYLE | FLAT |
| SECONDARY WASHER RELATIONSHIP TO PRIMARY WASHER | NOT IDENTICAL |
| SECONDARY WASHER MATERIAL THICKNESS | 0.062 INCHES MINIMUM AND 0.072 INCHES MAXIMUM |
| WASHER QUANTITY | 2 |
| WIDTH ACROSS FLATS | 0.188 INCHES NOMINAL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM A967 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.366 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNF |
| CHAMFER ANGLE | 30.0 DEGREES MINIMUM AND 45.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 0.625 INCHES NOMINAL |