| BEARING SURFACE TYPE | FLAT |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-P-17091 MIL SPEC SINGLE MATERIAL RESPONSE LOCKING INSERT |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL EXCEPT INSERT |
| MATERIAL | PLASTIC POLYAMIDE LOCKING INSERT |
| MATERIAL | STEEL COMP 303 OVERALL EXCEPT INSERT |
| NOMINAL THREAD SIZE | 0.112 INCHES |
| NUT HEIGHT | 0.110 INCHES NOMINAL |
| NUT STYLE | CAP |
| SPECIFICATION/STANDARD DATA | 10001-2558101 MANUFACTURERS SPECIFICATION CONTROL |
| WIDTH ACROSS FLATS | 0.181 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT |
| SURFACE TREATMENT | PASSIVATE OVERALL EXCEPT INSERT |
| TEMP RATING | -57.0 CELSIUS MINIMUM AND 121.0 CELSIUS MAXIMUM |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 40 |
| THREAD SERIES | UNC |