| BALL SEAT RADIUS | 0.385 INCHES MINIMUM AND 0.415 INCHES MAXIMUM |
| HARDNESS RATING | 41.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| LUBRICATION | DRY FILM LUBRICANT OR SOLUBLE LUBRICANT |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 601 OVERALL |
| NOMINAL THREAD SIZE | 0.375 INCHES |
| NUT HEIGHT | 0.360 INCHES MAXIMUM |
| NUT STYLE | SINGLE BALL SEAT, HEXAGON |
| SPECIFICATION/STANDARD DATA | 80205-NAS1288 GOVERNMENT STANDARD |
| WIDTH ACROSS FLATS | 0.430 INCHES MINIMUM AND 0.440 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2417 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | NICKEL OVERALL |
| TEMP RATING | 800.0 FAHRENHEIT NOMINAL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |