3M957-3-5-4: SCREW,SHOULDER.
The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-13 OVERALL, head_style: OVAL COUNTERSUNK, thread_class: 3A A, head_diameter: 0.328 INCHES MINIMUM AND 0.333 INCHES MAXIMUM IN, thread_length: 0.225 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN, shoulder_shape: ROUND FIRST SHOULDER. This part is cataloged in the U.S.
Government catalog under NSN 5305-01-142-9405, 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 XM-13 OVERALL |
| head_style | OVAL COUNTERSUNK |
| thread_class | 3A A |
| head_diameter | 0.328 INCHES MINIMUM AND 0.333 INCHES MAXIMUM IN |
| thread_length | 0.225 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN |
| shoulder_shape | ROUND FIRST SHOULDER |
| fastener_length | 0.547 INCHES MINIMUM AND 0.577 INCHES MAXIMUM IN |
| shoulder_length | 0.252 INCHES MINIMUM AND 0.280 INCHES MAXIMUM FIRST SHOULDER IN |
| thread_direction | RIGHT-HAND |
| countersink_angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| shoulder_diameter | 0.2177 INCHES MINIMUM AND 0.2182 INCHES MAXIMUM FIRST SHOULDER IN |
| surface_treatment | PASSIVATE OVERALL |
| NSN | 5305-01-142-9405 |
| FASTENER LENGTH | 0.547 INCHES MINIMUM AND 0.577 INCHES MAXIMUM IN |
| SHOULDER LENGTH | 0.252 INCHES MINIMUM AND 0.280 INCHES MAXIMUM FIRST SHOULDER IN |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SHOULDER DIAMETER | 0.2177 INCHES MINIMUM AND 0.2182 INCHES MAXIMUM FIRST SHOULDER IN |
| THREAD LENGTH | 0.225 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN |
| SHOULDER SHAPE | ROUND FIRST SHOULDER |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| NOMINAL THREAD DIAMETER | 0.190 INCHES IN |
| HEAD STYLE | OVAL COUNTERSUNK |
| THREAD DIRECTION | RIGHT-HAND |