| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | STEEL COMP 1137 OVERALL |
| NUT STYLE | HEXAGON |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| BEARING SURFACE TYPE | CHAMFERED OR |
| WASHER FACED |
| THREAD SERIES | UNC |
| NOMINAL THREAD SIZE | 0.625 INCHES |
| THREAD QUANTITY PER INCH | 11 |
| THREAD CLASS | 3B |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND |
| 34.0 ROCKWELL C MAXIMUM |
| NUT HEIGHT | 0.732 INCHES MINIMUM AND |
| 0.766 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.928 INCHES MINIMUM AND |
| 0.940 INCHES MAXIMUM |
| TEMP RATING | 250.0 DEG FAHRENHEIT NOMINAL |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81349 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MILN24129 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | M24129-2-10C |