AIC39C4A6: SCREW,MACHINE.
The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, head_height: 0.425 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.390 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN, screw_material: IRON ALLOY 660, fastener_length: 0.790 INCHES MINIMUM AND 0.810 INCHES MAXIMUM IN. This part is cataloged in the U.S.
Government catalog under NSN 5305-01-264-5049, 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 | FLAT COUNTERSUNK |
| head_height | 0.425 INCHES MAXIMUM IN |
| thread_class | 3A A |
| head_diameter | 0.390 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN |
| screw_material | IRON ALLOY 660 |
| fastener_length | 0.790 INCHES MINIMUM AND 0.810 INCHES MAXIMUM IN |
| thread_direction | RIGHT-HAND |
| countersink_angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| internal_drive_style | CROSS RECESS TYPE II |
| nominal_thread_diameter | 0.250 INCHES IN |
| screw_surface_treatment | PASSIVATE |
| thread_quantity_per_inch | 28 |
| NSN | 5305-01-264-5049 |
| HEAD HEIGHT | 0.425 INCHES MAXIMUM IN |
| SCREW SURFACE TREATMENT | PASSIVATE |
| FASTENER LENGTH | 0.790 INCHES MINIMUM AND 0.810 INCHES MAXIMUM IN |
| NOMINAL THREAD DIAMETER | 0.250 INCHES IN |
| HEAD STYLE | FLAT COUNTERSUNK |
| THREAD DIRECTION | RIGHT-HAND |
| SCREW MATERIAL | IRON ALLOY 660 |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE II |
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| THREAD CLASS | 3A A |
No substitute or cross-reference records for this part.