A02R2876-1: NUT,SELF-LOCKING,ROUND.
The NUT,SELF-LOCKING,ROUND is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OVERALL, nut_style: ROUND, nut_diameter: 4.250 INCHES NOMINAL IN, thread_class: 3B, nut_thickness: 0.400 INCHES NOMINAL IN, thread_series: UN. This part is cataloged in the U.S.
Government catalog under NSN 5310-00-074-1558, 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 COMP 4130 OVERALL |
| nut_style | ROUND |
| nut_diameter | 4.250 INCHES NOMINAL IN |
| thread_class | 3B |
| nut_thickness | 0.400 INCHES NOMINAL IN |
| thread_series | UN |
| locking_feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| thread_direction | RIGHT-HAND |
| countersink_angle | 90.0 DEGREES NOMINAL NUT |
| drive_point_depth | 0.530 INCHES NOMINAL IN |
| drive_point_width | 0.235 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN |
| small_end_diameter | 3.463 INCHES MINIMUM AND 3.470 INCHES MAXIMUM IN |
| NSN | 5310-00-074-1558 |
| THREAD SERIES | UN |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| DRIVE POINT WIDTH | 0.235 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN |
| THREAD DIRECTION | RIGHT-HAND |
| NOMINAL THREAD SIZE | 3.250 INCHES IN |
| NUT DIAMETER | 4.250 INCHES NOMINAL IN |
| DRIVE POINT DEPTH | 0.530 INCHES NOMINAL IN |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| NUT THICKNESS | 0.400 INCHES NOMINAL IN |
| SMALL END DIAMETER | 3.463 INCHES MINIMUM AND 3.470 INCHES MAXIMUM IN |
No substitute or cross-reference records for this part.