642AS0745: NUT,SELF-LOCKING,SINGLE BALL SEA.
NUT,SELF-LOCKING,SINGLE BALL SEA. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: SINGLE BALL SEAT, DOUBLE HEXAGON, nut_height: 0.491 INCHES NOMINAL IN, lubrication: DRY FILM LUBRICANT, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF). This part is cataloged in the U.S.
Government catalog under NSN 5310-01-040-9359, 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 | STEEL CORROSION RESISTING OVERALL |
| nut_style | SINGLE BALL SEAT, DOUBLE HEXAGON |
| nut_height | 0.491 INCHES NOMINAL IN |
| lubrication | DRY FILM LUBRICANT |
| thread_class | 3B |
| thread_series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| locking_feature | PREVAILING TORQUE ALL METAL DESIGN |
| ball_seat_radius | 0.561 INCHES NOMINAL IN |
| special_features | W/ALIGNING WASHER |
| thread_direction | RIGHT-HAND |
| surface_treatment | PASSIVATE OVERALL |
| width_across_flats | 0.553 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN |
| NSN | 5310-01-040-9359 |
| LUBRICATION | DRY FILM LUBRICANT |
| WIDTH ACROSS FLATS | 0.553 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN |
| THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| NOMINAL THREAD SIZE | 0.500 INCHES IN |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| NUT HEIGHT | 0.491 INCHES NOMINAL IN |
| BALL SEAT RADIUS | 0.561 INCHES NOMINAL IN |
| SPECIAL FEATURES | W/ALIGNING WASHER |
No substitute or cross-reference records for this part.