| THREAD SERIES | UNJF |
| NOMINAL THREAD SIZE | 0.190 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 2B |
| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | STEEL COMP 4037 AND |
| STEEL COMP 8740 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6300 ASSN STD 1ST MATERIAL RESPONSE OR |
| AMS 6322 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | TIN OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-T-10727 TY 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND |
| 43.0 ROCKWELL C MAXIMUM |
| NUT STYLE | HEXAGON |
| WASHER OUTSIDE DIAMETER | 0.330 INCHES MAXIMUM |
| OVERALL HEIGHT | 0.305 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.243 INCHES MINIMUM AND |
| 0.251 INCHES MAXIMUM |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| NUT COUNTERBORE DEPTH | 0.160 INCHES MINIMUM AND |
| 0.170 INCHES MAXIMUM NUT |
| COUNTERBORE DIAMETER | 0.231 INCHES MINIMUM AND |
| 0.235 INCHES MAXIMUM NUT |
| LUBRICATION | DRY FILM LUBRICANT |
| TEMP RATING | 232.0 DEG CELSIUS MAXIMUM |
| SPECIFICATION/STANDARD DATA | 26512-GN512JG MANUFACTURERS STANDARD |