| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | PLASTIC POLYAMIDE LOCKING INSERT |
| STEEL COMP 1137 NUT |
| NUT STYLE | HEXAGON |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| BEARING SURFACE TYPE | ANY ACCEPTABLE |
| THREAD SERIES | UNF |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 3B |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-N-25027 MIL SPEC SINGLE MATERIAL RESPONSE LOCKING INSERT |
| 66 FED STD SINGLE MATERIAL RESPONSE NUT |
| SURFACE TREATMENT | CADMIUM NUT |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL EXCEPT INSERT |
| NUT HEIGHT | 0.312 INCHES MINIMUM AND |
| 0.328 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.428 INCHES MINIMUM AND |
| 0.440 INCHES MAXIMUM |
| TEMP RATING | 250.0 DEG FAHRENHEIT NOMINAL |
| SPECIFICATION/STANDARD DATA | 94135-12Z2007 GOVERNMENT STANDARD |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 94135 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | 12Z2007-12 |