B334-343: SCREW,MACHINE.
The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: OVAL COUNTERSUNK, thread_class: 2A A, head_diameter: 0.257 INCHES MINIMUM AND 0.279 INCHES MAXIMUM IN, thread_length: 0.312 INCHES NOMINAL IN, screw_material: STEEL CORROSION RESISTING, fastener_length: 0.312 INCHES NOMINAL IN. This part is cataloged in the U.S.
Government catalog under NSN 5305-00-032-5366, 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 | OVAL COUNTERSUNK |
| thread_class | 2A A |
| head_diameter | 0.257 INCHES MINIMUM AND 0.279 INCHES MAXIMUM IN |
| thread_length | 0.312 INCHES NOMINAL IN |
| screw_material | STEEL CORROSION RESISTING |
| fastener_length | 0.312 INCHES NOMINAL IN |
| thread_direction | RIGHT-HAND |
| countersink_angle | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| internal_drive_style | CROSS RECESS TYPE 1 |
| nominal_thread_diameter | 0.138 INCHES IN |
| thread_quantity_per_inch | 32 |
| thread_series_designator | UNIFIED NATIONAL COARSE (UNC) |
| NSN | 5305-00-032-5366 |
| FASTENER LENGTH | 0.312 INCHES NOMINAL IN |
| THREAD LENGTH | 0.312 INCHES NOMINAL IN |
| NOMINAL THREAD DIAMETER | 0.138 INCHES IN |
| HEAD STYLE | OVAL COUNTERSUNK |
| THREAD DIRECTION | RIGHT-HAND |
| SCREW MATERIAL | STEEL CORROSION RESISTING |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| THREAD CLASS | 2A A |
| THREAD QUANTITY PER INCH | 32 |
No substitute or cross-reference records for this part.