ST3M653C4-8D: SCREW,SHOULDER.
The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-13 OVERALL, head_style: FLAT COUNTERSUNK UNDERCUT, head_height: 0.065 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.456 INCHES MINIMUM AND 0.508 INCHES MAXIMUM IN, thread_length: 0.469 INCHES NOMINAL IN. This part is cataloged in the U.S.
Government catalog under NSN 5305-01-268-5972, 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 | FLAT COUNTERSUNK UNDERCUT |
| head_height | 0.065 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN |
| thread_class | 3A A |
| head_diameter | 0.456 INCHES MINIMUM AND 0.508 INCHES MAXIMUM IN |
| thread_length | 0.469 INCHES NOMINAL IN |
| shoulder_shape | ROUND FIRST SHOULDER |
| fastener_length | 0.953 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN |
| shoulder_length | 0.433 INCHES MINIMUM AND 0.435 INCHES MAXIMUM FIRST SHOULDER IN |
| thread_direction | RIGHT-HAND |
| countersink_angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| shoulder_diameter | 0.264 INCHES MINIMUM AND 0.265 INCHES MAXIMUM FIRST SHOULDER IN |
| NSN | 5305-01-268-5972 |
| HEAD HEIGHT | 0.065 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN |
| FASTENER LENGTH | 0.953 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN |
| SHOULDER LENGTH | 0.433 INCHES MINIMUM AND 0.435 INCHES MAXIMUM FIRST SHOULDER IN |
| SHOULDER DIAMETER | 0.264 INCHES MINIMUM AND 0.265 INCHES MAXIMUM FIRST SHOULDER IN |
| THREAD LENGTH | 0.469 INCHES NOMINAL IN |
| SHOULDER SHAPE | ROUND FIRST SHOULDER |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| NOMINAL THREAD DIAMETER | 0.250 INCHES IN |
| HEAD STYLE | FLAT COUNTERSUNK UNDERCUT |
| THREAD DIRECTION | RIGHT-HAND |