| BEARING SURFACE FINISH | 125.0 MICROINCHES |
| BEARING SURFACE TYPE | CHAMFERED OR WASHER FACED |
| HARDNESS RATING | 28.0 ROCKWELL C MAXIMUM |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| LUBRICATION | DRY FILM LUBRICANT |
| NUT STYLE | HEXAGON |
| NUT HEIGHT | 0.626 INCHES MINIMUM AND 0.656 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE NUT |
| MATERIAL | PLASTIC POLYAMIDE LOCKING INSERT |
| MATERIAL | STEEL COMP 303 NUT |
| NOMINAL THREAD SIZE | 0.562 INCHES |
| WIDTH ACROSS FLATS | 0.861 INCHES MINIMUM AND 0.877 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35,TY 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT |
| SURFACE TREATMENT | PASSIVATE OVERALL EXCEPT INSERT |
| TEMP RATING | 250.0 FAHRENHEIT NOMINAL |
| THREAD CLASS | 2B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 18 |
| THREAD SERIES | UNF |