83958-428C: NUT,SELF-LOCKING,EXTENDED WASHER.
NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include material: IRON ALLOY 660 OVERALL, nut_style: HEXAGON, lubrication: DRY FILM LUBRICANT, temp_rating: 450.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF). This part is cataloged in the U.S.
Government catalog under NSN 5310-01-348-3572, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.
Verify compatibility with your specific system configuration before ordering.
| material | IRON ALLOY 660 OVERALL |
| nut_style | HEXAGON |
| lubrication | DRY FILM LUBRICANT |
| temp_rating | 450.0 FAHRENHEIT NOMINAL DEGF |
| thread_class | 3B |
| thread_series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| overall_height | 0.290 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN |
| locking_feature | PREVAILING TORQUE ALL METAL DESIGN |
| special_features | SHANK EXTENDING FROM WASHER END; LENGTH .218MAX,.214MIN; DIAMETER .375 MAX,.371MIN |
| thread_direction | RIGHT-HAND |
| washer_thickness | 0.045 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN |
| surface_treatment | PASSIVATE OVERALL |
| NSN | 5310-01-348-3572 |
| LUBRICATION | DRY FILM LUBRICANT |
| OVERALL HEIGHT | 0.290 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN |
| WASHER OUTSIDE DIAMETER | 0.585 INCHES MINIMUM AND 0.595 INCHES MAXIMUM IN |
| WIDTH ACROSS FLATS | 0.305 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
| TEMP RATING | 450.0 FAHRENHEIT NOMINAL DEGF |
| WASHER THICKNESS | 0.045 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| NUT COUNTERBORE DEPTH | 0.291 INCHES MINIMUM AND 0.296 INCHES MAXIMUM FIRST END IN |