ST172C3-18: SCREW,MACHINE.
The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, head_height: 0.105 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 1.047 INCHES MINIMUM AND 1.156 INCHES MAXIMUM IN, screw_material: IRON ALLOY 660, fastener_length: 1.109 INCHES MINIMUM AND 1.156 INCHES MAXIMUM IN. This part is cataloged in the U.S.
Government catalog under NSN 5305-01-371-5848, 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 | HEXAGON |
| head_height | 0.105 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN |
| thread_class | 3A A |
| thread_length | 1.047 INCHES MINIMUM AND 1.156 INCHES MAXIMUM IN |
| screw_material | IRON ALLOY 660 |
| fastener_length | 1.109 INCHES MINIMUM AND 1.156 INCHES MAXIMUM IN |
| special_features | INTERNAL DRIVE CAN BE OPTIONAL |
| thread_direction | RIGHT-HAND |
| width_between_flats | 0.302 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| internal_drive_style | CROSS RECESS TYPE 1 |
| nominal_thread_diameter | 0.190 INCHES IN |
| screw_surface_treatment | PASSIVATE |
| NSN | 5305-01-371-5848 |
| HEAD HEIGHT | 0.105 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN |
| SCREW SURFACE TREATMENT | PASSIVATE |
| FASTENER LENGTH | 1.109 INCHES MINIMUM AND 1.156 INCHES MAXIMUM IN |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE |
| THREAD LENGTH | 1.047 INCHES MINIMUM AND 1.156 INCHES MAXIMUM IN |
| NOMINAL THREAD DIAMETER | 0.190 INCHES IN |
| HEAD STYLE | HEXAGON |
| THREAD DIRECTION | RIGHT-HAND |
| WIDTH BETWEEN FLATS | 0.302 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| SCREW MATERIAL | IRON ALLOY 660 |
No substitute or cross-reference records for this part.