4188873-1: NUT,SELF-LOCKING,SINGLE BALL SEA.
NUT,SELF-LOCKING,SINGLE BALL SEA. Key specifications include material: PLASTIC POLYAMIDE NYLON NUT, nut_style: SINGLE BALL SEAT, HEXAGON, nut_height: 0.489 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNF, locking_feature: PREVAILING TORQUE WITH NONMETALLIC INSERT. This part is cataloged in the U.S.
Government catalog under NSN 5310-00-684-8858, 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 | PLASTIC POLYAMIDE NYLON NUT |
| nut_style | SINGLE BALL SEAT, HEXAGON |
| nut_height | 0.489 INCHES NOMINAL IN |
| thread_class | 3B |
| thread_series | UNF |
| locking_feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| ball_seat_radius | 0.385 INCHES NOMINAL IN |
| thread_direction | RIGHT-HAND |
| surface_treatment | CADMIUM AND PHOSPHATE NUT |
| width_across_flats | 0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN |
| nominal_thread_size | 0.375 INCHES IN |
| thread_quantity_per_inch | 24 |
| NSN | 5310-00-684-8858 |
| WIDTH ACROSS FLATS | 0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN |
| THREAD SERIES | UNF |
| THREAD DIRECTION | RIGHT-HAND |
| NOMINAL THREAD SIZE | 0.375 INCHES IN |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| NUT HEIGHT | 0.489 INCHES NOMINAL IN |
| BALL SEAT RADIUS | 0.385 INCHES NOMINAL IN |
| SURFACE TREATMENT | CADMIUM AND PHOSPHATE NUT |
| NUT STYLE | SINGLE BALL SEAT, HEXAGON |
| THREAD CLASS | 3B |