421721: SCREW,MACHINE.
The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: ROUND, head_height: 0.067 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.169 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN, thread_length: 0.146 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN, screw_material: COPPER ALLOY. This part is cataloged in the U.S.
Government catalog under NSN 5305-00-042-1721, 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 | ROUND |
| head_height | 0.067 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN |
| thread_class | 2A A |
| head_diameter | 0.169 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN |
| thread_length | 0.146 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN |
| screw_material | COPPER ALLOY |
| fastener_length | 0.156 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN |
| thread_direction | RIGHT-HAND |
| internal_drive_style | CROSS RECESS TYPE 1 |
| nominal_thread_diameter | 0.099 INCHES IN |
| minimum_tensile_strength | 55000 POUNDS PER SQUARE INCH LBS |
| thread_quantity_per_inch | 48 |
| NSN | 5305-00-042-1721 |
| HEAD HEIGHT | 0.067 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN |
| FASTENER LENGTH | 0.156 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-W-321 FED SPEC SINGLE MATERIAL RESPONSE |
| THREAD LENGTH | 0.146 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN |
| NOMINAL THREAD DIAMETER | 0.099 INCHES IN |
| HEAD STYLE | ROUND |
| THREAD DIRECTION | RIGHT-HAND |
| NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND 1S STYLE |
| SCREW MATERIAL | COPPER ALLOY |
| MINIMUM TENSILE STRENGTH | 55000 POUNDS PER SQUARE INCH LBS |