AB2563A8: SCREW,MACHINE.
The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: WATERTIGHT, head_height: 0.125 INCHES NOMINAL IN, thread_class: 3A A, head_diameter: 0.438 INCHES NOMINAL IN, thread_length: 0.312 INCHES NOMINAL IN, screw_material: STEEL COMP 4620. This part is cataloged in the U.S.
Government catalog under NSN 5305-01-044-8206, 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.
| head_style | WATERTIGHT |
| head_height | 0.125 INCHES NOMINAL IN |
| thread_class | 3A A |
| head_diameter | 0.438 INCHES NOMINAL IN |
| thread_length | 0.312 INCHES NOMINAL IN |
| screw_material | STEEL COMP 4620 |
| fastener_length | 0.500 INCHES NOMINAL IN |
| hardness_rating | 38.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM |
| thread_direction | RIGHT-HAND |
| features_provided | FLAT WASHER AND O RING |
| internal_drive_style | CROSS RECESS TYPE 1 |
| nominal_thread_diameter | 0.190 INCHES IN |
| NSN | 5305-01-044-8206 |
| HEAD HEIGHT | 0.125 INCHES NOMINAL IN |
| SCREW SURFACE TREATMENT | PASSIVATE |
| FASTENER LENGTH | 0.500 INCHES NOMINAL IN |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-7493 FED SPEC SINGLE MATERIAL RESPONSE |
| THREAD LENGTH | 0.312 INCHES NOMINAL IN |
| HARDNESS RATING | 38.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM |
| NOMINAL THREAD DIAMETER | 0.190 INCHES IN |
| FEATURES PROVIDED | FLAT WASHER AND O RING |
| HEAD STYLE | WATERTIGHT |
| THREAD DIRECTION | RIGHT-HAND |
No substitute or cross-reference records for this part.