ST3M557-3-5: SCREW,CLOSE TOLERANCE.
The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: OVAL COUNTERSUNK, grip_length: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN, head_diameter: 0.297 INCHES MINIMUM AND 0.302 INCHES MAXIMUM IN. This part is cataloged in the U.S.
Government catalog under NSN 5305-01-178-9308, 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 CORROSION RESISTING OVERALL |
| head_style | OVAL COUNTERSUNK |
| grip_length | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN |
| thread_class | 3A A |
| grip_diameter | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| head_diameter | 0.297 INCHES MINIMUM AND 0.302 INCHES MAXIMUM IN |
| thread_length | 0.380 INCHES MINIMUM AND 0.447 INCHES MAXIMUM IN |
| fastener_length | 0.702 INCHES MINIMUM AND 0.749 INCHES MAXIMUM IN |
| thread_direction | RIGHT-HAND |
| countersink_angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| surface_treatment | PASSIVATE OVERALL |
| internal_drive_style | HIGH-TORQUE |
| NSN | 5305-01-178-9308 |
| FASTENER LENGTH | 0.702 INCHES MINIMUM AND 0.749 INCHES MAXIMUM IN |
| THREAD LENGTH | 0.380 INCHES MINIMUM AND 0.447 INCHES MAXIMUM IN |
| NOMINAL THREAD DIAMETER | 0.190 INCHES IN |
| HEAD STYLE | OVAL COUNTERSUNK |
| THREAD DIRECTION | RIGHT-HAND |
| GRIP LENGTH | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN |
| GRIP DIAMETER | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| INTERNAL DRIVE STYLE | HIGH-TORQUE |
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |