| BEARING SURFACE TYPE | ANY ACCEPTABLE |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-M-20693,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE LOCKING INSERT |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL EXCEPT INSERT |
| MATERIAL | PLASTIC POLYHEXAMETHYLENE ADIPAMIDE LOCKING INSERT |
| MATERIAL | STEEL COMP 302 OR STEEL COMP 303 OVERALL EXCEPT INSERT |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD SIZE | 0.164 INCHES |
| NUT HEIGHT | 0.219 INCHES MINIMUM AND 0.239 INCHES MAXIMUM |
| NUT STYLE | HEXAGON |
| WIDTH ACROSS FLATS | 0.334 INCHES MINIMUM AND 0.346 INCHES MAXIMUM |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| TEMP RATING | 250.0 DEG FAHRENHEIT NOMINAL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES | UNC |