| BEARING SURFACE TYPE | CHAMFERED |
| COUNTERSINK ANGLE | 88.0 DEGREES MINIMUM FIRST END |
| DEPARTURE FROM CITED DOCUMENT | AS MODIFIED BY MATER |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL EXCEPT INSERT |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-M-20693 MIL SPEC SINGLE MATERIAL RESPONSE LOCKING INSERT |
| MATERIAL | PLASTIC POLYAMIDE NYLON LOCKING INSERT |
| MATERIAL | STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 304 OVERALL EXCEPT INSERT |
| NOMINAL THREAD SIZE | 0.625 INCHES |
| NUT STYLE | HEXAGON |
| NUT HEIGHT | 0.732 INCHES MINIMUM AND 0.766 INCHES MAXIMUM |
| SPECIAL FEATURES | STEEL COMP 316 OR 30430 ARE ALSO ACCEPATABLE MATERIALS |
| WIDTH ACROSS FLATS | 0.928 INCHES MINIMUM AND 0.940 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE NUT |
| SURFACE TREATMENT | PASSIVATE NUT |
| TEMP RATING | 250.0 FAHRENHEIT NOMINAL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES | UNIFIED NATIONAL COARSE (UNC) |
| THREAD QUANTITY PER INCH | 11 |