6512-31-121-4101: NUT,PLAIN,ROUND.
The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4340 OVERALL, nut_style: ROUND, nut_diameter: 2.187 INCHES NOMINAL IN, thread_class: 3B, nut_thickness: 0.575 INCHES MINIMUM AND 0.585 INCHES MAXIMUM IN, thread_series: UNEF. This part is cataloged in the U.S.
Government catalog under NSN 5310-01-143-5328, 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 4340 OVERALL |
| nut_style | ROUND |
| nut_diameter | 2.187 INCHES NOMINAL IN |
| thread_class | 3B |
| nut_thickness | 0.575 INCHES MINIMUM AND 0.585 INCHES MAXIMUM IN |
| thread_series | UNEF |
| hardness_rating | 33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| thread_direction | RIGHT-HAND |
| drive_point_depth | 0.156 INCHES NOMINAL IN |
| drive_point_width | 0.188 INCHES NOMINAL IN |
| surface_treatment | CADMIUM OVERALL |
| small_end_diameter | 1.800 INCHES NOMINAL IN |
| NSN | 5310-01-143-5328 |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THREAD SERIES | UNEF |
| HARDNESS RATING | 33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 COND C MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| DRIVE POINT WIDTH | 0.188 INCHES NOMINAL IN |
| THREAD DIRECTION | RIGHT-HAND |
| NOMINAL THREAD SIZE | 1.375 INCHES IN |
| NUT DIAMETER | 2.187 INCHES NOMINAL IN |
| DRIVE POINT DEPTH | 0.156 INCHES NOMINAL IN |
| UNDERCUT THICKNESS | 0.380 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
No substitute or cross-reference records for this part.