| MATERIAL DOCUMENT AND CLASSIFICATION | UNABLE TO DECODE |
| MATERIAL | UNABLE TO DECODE |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NUT, SELF-LOCKING LIGHTWEIGHT, THIN CASTELLATED,A286 CRES |
| NOMINAL THREAD SIZE | 0.5000 INCHES |
| NUT STYLE | HEXAGON |
| OVERALL HEIGHT | 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | UNABLE TO DECODE |
| SURFACE TREATMENT | UNABLE TO DECODE |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 20 |
| THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
| WASHER OUTSIDE DIAMETER | 0.770 INCHES NOMINAL |
| WASHER THICKNESS | 0.030 INCHES NOMINAL |
| WIDTH ACROSS FLATS | 0.554 INCHES MINIMUM AND 0.566 INCHES MAXIMUM |