| THREAD SERIES | UNJF |
| NOMINAL THREAD SIZE | 0.750 INCHES |
| THREAD QUANTITY PER INCH | 16 |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | PLASTIC NYLON LOCKING INSERT |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS 5532 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| QQ-A-225/6,T4 FED SPEC 1ST MATERIAL RESPONSE OR |
| QQ-A-250/13,T6 FED SPEC 2ND MATERIAL RESPONSE WASHER |
| SURFACE TREATMENT | CADMIUM AND |
| CHROMATE NUT |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE NUT |
| NUT STYLE | FLAT WITH TURNED BACK EDGE |
| WASHER OUTSIDE DIAMETER | 1.253 INCHES MINIMUM AND |
| 1.283 INCHES MAXIMUM |
| OVERALL HEIGHT | 0.911 INCHES MINIMUM AND |
| 0.915 INCHES MAXIMUM |
| NUT HEIGHT | 0.481 INCHES NOMINAL |
| WIDTH ACROSS FLATS | 1.052 INCHES MINIMUM AND |
| 1.064 INCHES MAXIMUM |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| COUNTERBORE DIAMETER | 0.905 INCHES MINIMUM AND |
| 0.915 INCHES MAXIMUM NUT |
| TEMP RATING | 250.0 DEG FAHRENHEIT MINIMUM |