| THREAD SERIES | UNJF |
| NOMINAL THREAD SIZE | 0.3125 INCHES |
| THREAD QUANTITY PER INCH | 24 |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | STEEL OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS-QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| NUT STYLE | CASTELLATED HEXAGON |
| WASHER OUTSIDE DIAMETER | 0.4820 INCHES MINIMUM |
| OVERALL HEIGHT | 0.3130 INCHES MINIMUM AND |
| 0.3430 INCHES MAXIMUM |
| WASHER THICKNESS | 0.0550 INCHES NOMINAL |
| WIDTH ACROSS FLATS | 0.3670 INCHES MINIMUM AND |
| 0.3780 INCHES MAXIMUM |
| LOCKING FEATURE | FREE-RUNNING ALL METAL DESIGN |
| TEMP RATING | 450.0000 DEG FAHRENHEIT MAXIMUM |
| SPECIAL FEATURES | MATERIAL CARBON AND ALLOY STEEL; NON SOLID FILM LUBRICATION; |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NUT, SELF-LOCKING, LIGHTWEIGHT, CASTELLATED, 450 DEGREE F |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 96906 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS14144-5 |