| BALL SEAT RADIUS | 0.375 INCHES MINIMUM AND 0.385 INCHES MAXIMUM |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| LUBRICATION | SOLUBLE LUBRICANT |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| NOMINAL THREAD SIZE | 0.375 INCHES |
| NUT HEIGHT | 0.445 INCHES MINIMUM AND 0.455 INCHES MAXIMUM |
| NUT STYLE | SINGLE BALL SEAT, DOUBLE HEXAGON |
| SPECIAL FEATURES | 0.531 IN. MIN AND 0.537 IN. MAX WASHER ID,0.780 IN. MIN AND 0.790 IN. MAX WASHER OD,0.170 IN. MIN AND 0.180 IN. MAX WASHER THICKNESS,0.099 IN NOM SHOULDER HEIGHT 0.435 IN. MIN AND 0.455 IN. MAX SPHERICAL RADIUS |
| WIDTH ACROSS FLATS | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |