3M1231-1: SCREW,CLOSE TOLERANCE.
The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, head_style: HEXAGON, grip_length: 1.570 INCHES MINIMUM AND 1.590 INCHES MAXIMUM IN, head_height: 0.080 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.115 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN. This part is cataloged in the U.S.
Government catalog under NSN 5305-01-433-4092, 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.
| material | IRON ALLOY 660 OVERALL |
| head_style | HEXAGON |
| grip_length | 1.570 INCHES MINIMUM AND 1.590 INCHES MAXIMUM IN |
| head_height | 0.080 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN |
| thread_class | 3A A |
| grip_diameter | 0.115 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN |
| thread_length | 0.577 INCHES NOMINAL IN |
| fastener_length | 2.157 INCHES NOMINAL IN |
| thread_direction | RIGHT-HAND |
| width_between_flats | 0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN |
| internal_drive_style | W/O INTERNAL DRIVE |
| nominal_thread_diameter | 0.138 INCHES IN |
| NSN | 5305-01-433-4092 |
| HEAD HEIGHT | 0.080 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN |
| FASTENER LENGTH | 2.157 INCHES NOMINAL IN |
| THREAD LENGTH | 0.577 INCHES NOMINAL IN |
| NOMINAL THREAD DIAMETER | 0.138 INCHES IN |
| HEAD STYLE | HEXAGON |
| THREAD DIRECTION | RIGHT-HAND |
| GRIP LENGTH | 1.570 INCHES MINIMUM AND 1.590 INCHES MAXIMUM IN |
| WIDTH BETWEEN FLATS | 0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN |
| GRIP DIAMETER | 0.115 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH LBS |
No substitute or cross-reference records for this part.