639AS516-4: NUT,PLAIN,ROUND.
The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include material: STEEL ALLOY OVERALL, nut_style: ROUND, nut_diameter: 0.407 INCHES MINIMUM AND 0.413 INCHES MAXIMUM IN, thread_class: 2B, nut_thickness: 0.081 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN, thread_series: UNS. This part is cataloged in the U.S.
Government catalog under NSN 5310-01-139-6496, 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 ALLOY OVERALL |
| nut_style | ROUND |
| nut_diameter | 0.407 INCHES MINIMUM AND 0.413 INCHES MAXIMUM IN |
| thread_class | 2B |
| nut_thickness | 0.081 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN |
| thread_series | UNS |
| special_features | MATERIAL: TUNGSTEN ALLOY OVERALL |
| thread_direction | RIGHT-HAND |
| countersink_angle | 85.0 DEGREES MINIMUM AND 95.0 DEGREES MAXIMUM OVERALL |
| drive_point_depth | 0.034 INCHES NOMINAL IN |
| drive_point_width | 0.061 INCHES MINIMUM AND 0.077 INCHES MAXIMUM IN |
| surface_treatment | CHROMIUM OVERALL |
| NSN | 5310-01-139-6496 |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-P-14538 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THREAD SERIES | UNS |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-T-21014 CLASS 3 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| DRIVE POINT WIDTH | 0.061 INCHES MINIMUM AND 0.077 INCHES MAXIMUM IN |
| THREAD DIRECTION | RIGHT-HAND |
| NOMINAL THREAD SIZE | 0.250 INCHES IN |
| NUT DIAMETER | 0.407 INCHES MINIMUM AND 0.413 INCHES MAXIMUM IN |
| DRIVE POINT DEPTH | 0.034 INCHES NOMINAL IN |
| NUT THICKNESS | 0.081 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN |
| SPECIAL FEATURES | MATERIAL: TUNGSTEN ALLOY OVERALL |
No substitute or cross-reference records for this part.