| 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 | AMS-5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | SILVER OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS-2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| NUT STYLE | FLAT WITH TURNED UP EDGE |
| WASHER OUTSIDE DIAMETER | 0.460 INCHES MAXIMUM |
| OVERALL HEIGHT | 0.281 INCHES NOMINAL |
| WIDTH ACROSS FLATS | 0.274 INCHES MINIMUM AND |
| 0.284 INCHES MAXIMUM |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| NUT COUNTERBORE DEPTH | 0.077 INCHES NOMINAL FIRST END |
| COUNTERBORE DIAMETER | 0.282 INCHES NOMINAL FIRST END |
| COUNTERSINK ANGLE | 45.0 DEGREES NOMINAL FIRST END |
| SPECIAL FEATURES | MAKE FROM TLN1000C-4 OR HW17C4 IAW DRAWING A15D3551-1 WITH ADCN 2 |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | LOCKNUT |