| BEARING SURFACE TYPE | CHAMFERED |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| LUBRICATION | DRY FILM LUBRICANT |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-F-18240,TYPE B MIL SPEC SINGLE MATERIAL RESPONSE LOCKING INSERT |
| MATERIAL | IRON ALLOY 660 NUT |
| MATERIAL | PLASTIC LOCKING INSERT |
| NOMINAL THREAD SIZE | 1.125 INCHES |
| NUT HEIGHT | 0.550 INCHES MINIMUM AND 0.600 INCHES MAXIMUM |
| NUT STYLE | HEXAGON |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-25 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT |
| SURFACE TREATMENT | PASSIVATE OVERALL EXCEPT INSERT |
| TEMP RATING | -65.0 FAHRENHEIT MINIMUM AND 250.0 FAHRENHEIT MAXIMUM |
| THREAD CLASS | 2B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 18 |
| THREAD SERIES | UNJEF |
| WIDTH ACROSS FLATS | 1.605 INCHES MINIMUM AND 1.627 INCHES MAXIMUM |