| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT OR PREVAILING TORQUE ALL METAL DESIGN |
| NUT HEIGHT | 0.312 INCHES NOMINAL |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| BEARING SURFACE TYPE | FLAT |
| MATERIAL | FIBER LOCKING INSERT |
| MATERIAL | STEEL NUT |
| MATERIAL | STEEL OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-M-20693 COMP A TYPE 1 MIL SPEC ALL MATERIAL RESPONSES LOCKING INSERT |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-633 FED SPEC ALL MATERIAL RESPONSES NUT |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-633 FED SPEC ALL MATERIAL RESPONSES OVERALL |