3M123-3D3: SCREW,CLOSE TOLERANCE.
The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, head_style: FLAT COUNTERSUNK, grip_length: 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN, head_diameter: 0.376 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN. This part is cataloged in the U.S.
Government catalog under NSN 5305-00-308-1807, 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 | IRON ALLOY 660 OVERALL |
| head_style | FLAT COUNTERSUNK |
| grip_length | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN |
| thread_class | 3A A |
| grip_diameter | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| head_diameter | 0.376 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN |
| thread_length | 0.380 INCHES MINIMUM AND 0.447 INCHES MAXIMUM IN |
| surface_finish | 32.0 MICROINCHES THREADS |
| fastener_length | 0.578 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| thread_direction | RIGHT-HAND |
| countersink_angle | 100.0 DEGREES MINIMUM |
| internal_drive_style | HIGH-TORQUE |
| NSN | 5305-00-308-1807 |
| SURFACE FINISH | 32.0 MICROINCHES THREADS |
| SURFACE FINISH | 32.0 MICROINCHES GRIP |
| SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| FASTENER LENGTH | 0.578 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| THREAD LENGTH | 0.380 INCHES MINIMUM AND 0.447 INCHES MAXIMUM IN |
| SHANK UNTHREADED HOLE DIAMETER | 0.070 INCHES NOMINAL FIRST HOLE IN |
| NOMINAL THREAD DIAMETER | 0.190 INCHES IN |
| HEAD STYLE | FLAT COUNTERSUNK |
| THREAD DIRECTION | RIGHT-HAND |
| GRIP LENGTH | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN |