| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | PLASTIC POLYHEXAMETHYLENE AMIDE LOCKING INSERT |
| STEEL COMP 1137 NUT |
| NUT STYLE | HEXAGON |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| BEARING SURFACE TYPE | CHAMFERED OR |
| WASHER FACED |
| THREAD SERIES | UNC |
| NOMINAL THREAD SIZE | 2.000 INCHES |
| THREAD QUANTITY PER INCH | 4 1/2 |
| THREAD CLASS | 3B |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-M-20693,TYPE 1 MIL SPEC 1ST MATERIAL RESPONSE LOCKING INSERT |
| 66 FED STD SINGLE MATERIAL RESPONSE OR |
| AISI FED STD SINGLE MATERIAL RESPONSE OR |
| SAE FED STD SINGLE MATERIAL RESPONSE NUT |
| SURFACE TREATMENT | CADMIUM OVERALL EXCEPT INSERT |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT |
| NUT HEIGHT | 2.343 INCHES MINIMUM AND |
| 2.469 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 3.086 INCHES MINIMUM AND |
| 3.137 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 88.0 DEGREES NOMINAL NUT |
| TEMP RATING | 250.0 DEG FAHRENHEIT NOMINAL |
| DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY FEAT |
| BEARING SURFACE FINISH | 125.0 MICROINCHES |
| SPECIAL FEATURES | CERTIFIED FREE FROM MERCURY CONTAMINATION |