| THREAD SERIES | UNJF |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | IRON ALLOY 660 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| AMS 5525 ASSN STD 1ST MATERIAL RESPONSE OR |
| AMS 5737 ASSN STD 2ND MATERIAL RESPONSE WASHER |
| SURFACE TREATMENT | SILVER OVERALL |
| SILVER NUT |
| PASSIVATE WASHER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-S-365 FED SPEC SINGLE TREATMENT RESPONSE OR |
| AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| NUT STYLE | HEXAGON |
| WASHER OUTSIDE DIAMETER | 0.505 INCHES MINIMUM AND |
| 0.515 INCHES MAXIMUM |
| OVERALL HEIGHT | 0.292 INCHES MAXIMUM |
| WASHER THICKNESS | 0.113 INCHES MINIMUM AND |
| 0.123 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.305 INCHES MINIMUM AND |
| 0.313 INCHES MAXIMUM |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| TEMP RATING | 800.0 DEG FAHRENHEIT MAXIMUM |
| PRECIOUS MATERIAL | SILVER |
| PRECIOUS MATERIAL AND LOCATION | ALL SURFACES SILVER |