63978PC2: SCREW,MACHINE.
The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT CHAMFER, head_height: 0.300 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM IN, thread_length: 0.440 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN, screw_material: STEEL. This part is cataloged in the U.S.
Government catalog under NSN 5305-00-174-3909, 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 CHAMFER |
| head_height | 0.300 INCHES NOMINAL IN |
| thread_class | 2A A |
| head_diameter | 0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM IN |
| thread_length | 0.440 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN |
| screw_material | STEEL |
| fastener_length | 0.440 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN |
| thread_direction | RIGHT-HAND |
| internal_drive_style | SLOT |
| nominal_thread_diameter | 0.250 INCHES IN |
| thread_quantity_per_inch | 20 |
| thread_series_designator | UNIFIED NATIONAL COARSE (UNC) |
| NSN | 5305-00-174-3909 |
| HEAD HEIGHT | 0.300 INCHES NOMINAL IN |
| FASTENER LENGTH | 0.440 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-16124 CLASS 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-S-16124 CLASS 1,COMP B MIL SPEC SINGLE MATERIAL RESPONSE |
| THREAD LENGTH | 0.440 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN |
| NOMINAL THREAD DIAMETER | 0.250 INCHES IN |
| HEAD STYLE | FLAT CHAMFER |
| THREAD DIRECTION | RIGHT-HAND |
| SCREW MATERIAL | STEEL |
| INTERNAL DRIVE STYLE | SLOT |
| THREAD CLASS | 2A A |
No substitute or cross-reference records for this part.