| THREAD SERIES | UNF |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2419-3 ASSN STD SINGLE TREATMENT RESPONSE NUT |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| THREAD DIRECTION | RIGHT-HAND |
| NOMINAL THREAD SIZE | 0.375 INCHES |
| WIDTH ACROSS FLATS | 0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM |
| SURFACE TREATMENT | CADMIUM NUT |
| BEARING SURFACE FINISH | 63.0 MICROINCHES |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| MATERIAL | PLASTIC POLYAMIDE LOCKING INSERT |
| MATERIAL | STEEL NUT |
| NUT HEIGHT | 0.315 INCHES MINIMUM AND 0.325 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 24 |
| BEARING SURFACE TYPE | CHAMFERED OR WASHER FACED |
| NUT STYLE | HEXAGON |
| THREAD CLASS | 3B |
| COUNTERSINK ANGLE | 118.0 DEGREES MINIMUM NUT AND 122.0 DEGREES MAXIMUM NUT |