| BEARING SURFACE TYPE | FLAT |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| NUT HEIGHT | 0.516 INCHES MINIMUM AND 0.578 INCHES MAXIMUM |
| NUT STYLE | HEXAGON |
| MATERIAL | PLASTIC POLYAMIDE NYLON LOCKING INSERT |
| MATERIAL | STEEL OVERALL EXCEPT INSERT |
| NOMINAL THREAD SIZE | 1.000 INCHES |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NUT - HEX, LIGHT |
| THREAD SERIES | UNJS |
| THREAD QUANTITY PER INCH | 14 |
| WIDTH ACROSS FLATS | 1.427 INCHES MINIMUM AND 1.440 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | SAE AMS-QQ-P-416C ASSN STD SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT |
| SURFACE TREATMENT | CADMIUM OVERALL EXCEPT INSERT |
| TEMP RATING | 250.0 FAHRENHEIT MINIMUM AND 450.0 FAHRENHEIT MAXIMUM |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |