| BARREL HEIGHT | 0.640 INCHES MINIMUM AND 0.660 INCHES MAXIMUM |
| FEATURES PROVIDED | FLOATING NUT |
| HARDNESS RATING | 38.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| LUBRICATION | DRY FILM LUBRICANT |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 PER 4340 MIL SPEC 1ST MATERIAL RESPONSE OR AMS 6414 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP E4340 OR STEEL COMP 4340 OVERALL |
| NOMINAL THREAD SIZE | 0.625 INCHES |
| NUT DIAMETER | 1.057 INCHES MINIMUM AND 1.060 INCHES MAXIMUM |
| NUT LENGTH | 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM |
| NUT STYLE | FLOATING SELF-LOCKING BARREL |
| NUT HEIGHT | 0.844 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| TEMP RATING | 450.0 FAHRENHEIT MAXIMUM |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 3B |
| THREAD SERIES | UNJF |
| THREAD QUANTITY PER INCH | 18 |