| THREAD SERIES | UNJF |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| NUT STYLE | GANG CHANNEL, SELF LOCKING |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| CHANNEL STYLE | STRAIGHT TYPE |
| OVERALL WIDTH | 0.574 INCHES NOMINAL |
| ASSEMBLY OVERALL HEIGHT | 0.341 INCHES MAXIMUM |
| CHANNEL HEIGHT | 0.298 INCHES MAXIMUM |
| NUT SPACING | 1.000 INCHES NOMINAL |
| NUT QUANTITY | 2 |
| NUT COUNTERBORE DEPTH | 0.125 INCHES MINIMUM OVERALL |
| COUNTERBORE DIAMETER | 0.254 INCHES MINIMUM OVERALL |
| LUBRICATION | DRY FILM LUBRICANT |
| TEMP RATING | 350.0 DEG FAHRENHEIT MAXIMUM |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NUT ASSEMBLY, SELF-LOCKING, GANG CHANNEL-VARIABLE COUNTERBORE, DRY FILM, EXTENDED REUSE |