| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5525 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NUT |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD SIZE | 0.500 INCHES |
| NUT STYLE | HEXAGON |
| OVERALL HEIGHT | 0.500 INCHES MAXIMUM |
| WASHER OUTSIDE DIAMETER | 0.826 INCHES MAXIMUM |
| WASHER THICKNESS | 0.069 INCHES MINIMUM |
| WIDTH ACROSS FLATS | 0.620 INCHES MINIMUM AND 0.627 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-S-5002 MIL SPEC 1ST TREATMENT RESPONSE OVERALL AND AMS2418 ASSN STD 2ND TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL AND COPPER OVERALL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 20 |
| THREAD SERIES | UNJF |