A-A-55623: SCREW,MACHINE.
The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, thread_class: 2A A, head_diameter: 0.191 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN, thread_length: 0.330 INCHES MINIMUM IN, screw_material: PLASTIC POLYHEXAMETHYLENE AMIDE, fastener_length: 0.407 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN. This part is cataloged in the U.S.
Government catalog under NSN 5305-00-119-7574, 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 |
| thread_class | 2A A |
| head_diameter | 0.191 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN |
| thread_length | 0.330 INCHES MINIMUM IN |
| screw_material | PLASTIC POLYHEXAMETHYLENE AMIDE |
| fastener_length | 0.407 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN |
| thread_direction | RIGHT-HAND |
| countersink_angle | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| internal_drive_style | SLOT |
| nominal_thread_diameter | 0.112 INCHES IN |
| thread_quantity_per_inch | 40 |
| thread_series_designator | UNIFIED NATIONAL COARSE (UNC) |
| NSN | 5305-00-119-7574 |
| FASTENER LENGTH | 0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| THREAD LENGTH | 0.523 INCHES MINIMUM AND 0.554 INCHES MAXIMUM IN |
| NOMINAL THREAD DIAMETER | 0.250 INCHES IN |
| HEAD STYLE | FLAT COUNTERSUNK |
| THREAD DIRECTION | RIGHT-HAND |
| NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND 3S STYLE |
| SCREW MATERIAL | PLASTIC POLYHEXAMETHYLENE AMIDE |
| INTERNAL DRIVE STYLE | SLOT |
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| THREAD CLASS | 2A A |