The NUT,PLAIN,ROUND is a 3M industrial component. Key specifications include material: STEEL COMP 4140 OVERALL, nut_style: ROUND, nut_diameter: 5.422 INCHES MINIMUM AND 5.442 INCHES MAXIMUM IN, thread_class: 2B, nut_thickness: 1.500 INCHES NOMINAL IN, thread_series: UN. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-325-9961, 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 4140 OVERALL |
| nut_style | ROUND |
| nut_diameter | 5.422 INCHES MINIMUM AND 5.442 INCHES MAXIMUM IN |
| thread_class | 2B |
| nut_thickness | 1.500 INCHES NOMINAL IN |
| thread_series | UN |
| thread_direction | RIGHT-HAND |
| countersink_angle | 90.0 DEGREES NOMINAL BOTH ENDS |
| drive_point_depth | 0.219 INCHES NOMINAL IN |
| drive_point_width | 0.485 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| surface_treatment | ZINC AND CHROMATE OVERALL |
| nominal_thread_size | 4.000 INCHES IN |
| NSN | 5310-01-325-9961 |
| DRIVE POINT QUANTITY | 4 |
| NUT STYLE | ROUND |
| HOLE THREAD QUANTITY PER INCH | 32 |
| NOMINAL THREAD SIZE | 4.000 INCHES IN |
| HOLE CONFIGURATION STYLE | CONFIGURATION F |
| THREAD SERIES | UN |
| THREAD QUANTITY PER INCH | 12 |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A322 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A331 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| COUNTERSINK ANGLE | 90.0 DEGREES NOMINAL BOTH ENDS |
| HOLE NOMINAL THREAD DIAMETER | 0.190 INCHES IN |