| BASE THICKNESS | 0.055 INCHES MINIMUM AND 0.075 INCHES MAXIMUM |
| BASE WIDTH | 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 85.0 DEGREES MINIMUM AND 95.0 DEGREES MAXIMUM NUT |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| NUT HEIGHT | 0.396 INCHES MINIMUM AND 0.416 INCHES MAXIMUM |
| NUT STYLE | GANG CHANNEL, SELF LOCKING |
| NUT LENGTH | 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM |
| PRECIOUS MATERIAL | SILVER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | SILVER OVERALL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES | UNF |