| THREAD SERIES | UNJF |
| NOMINAL THREAD SIZE | 1.000 INCHES |
| THREAD QUANTITY PER INCH | 14 |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | STEEL OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS6304 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS6322 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS6458 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TYPE 2, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| HARDNESS RATING | 38.0 ROCKWELL C MINIMUM AND |
| 45.0 ROCKWELL C MAXIMUM |
| NUT STYLE | DOUBLE HEXAGON |
| WASHER OUTSIDE DIAMETER | 1.625 INCHES MAXIMUM |
| OVERALL HEIGHT | 0.973 INCHES MAXIMUM |
| WASHER THICKNESS | 0.195 INCHES NOMINAL |
| WIDTH ACROSS FLATS | 1.177 INCHES MINIMUM AND |
| 1.195 INCHES MAXIMUM |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| LUBRICATION | SOLUBLE LUBRICANT |
| TEMP RATING | 450.0 DEG FAHRENHEIT NOMINAL |