3173945-1: SCREW,MACHINE.
The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT CHAMFER, head_height: 0.070 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN, thread_length: 0.900 INCHES MINIMUM IN, screw_material: STEEL COMP 630. This part is cataloged in the U.S.
Government catalog under NSN 5305-01-293-6643, 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 | 0.070 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN |
| thread_class | 3A A |
| head_diameter | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| thread_length | 0.900 INCHES MINIMUM IN |
| screw_material | STEEL COMP 630 |
| fastener_length | 1.350 INCHES MINIMUM AND 1.390 INCHES MAXIMUM IN |
| hardness_rating | 31.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM |
| special_features | INTERNAL DRIVE ON THD END |
| thread_direction | RIGHT-HAND |
| thread_surface_finish | 63.0 MICROINCHES |
| nominal_thread_diameter | 0.250 INCHES IN |
| NSN | 5305-01-293-6643 |
| HEAD HEIGHT | 0.070 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN |
| FASTENER LENGTH | 1.350 INCHES MINIMUM AND 1.390 INCHES MAXIMUM IN |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE |
| THREAD LENGTH | 0.900 INCHES MINIMUM IN |
| HARDNESS RATING | 31.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM |
| NOMINAL THREAD DIAMETER | 0.250 INCHES IN |
| HEAD STYLE | FLAT CHAMFER |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SURFACE FINISH | 63.0 MICROINCHES |
| SCREW MATERIAL | STEEL COMP 630 |
No substitute or cross-reference records for this part.