MS9491-41: BOLT,MACHINE.
The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, head_style: HEXAGON, grip_length: 2.815 INCHES MINIMUM AND 2.875 INCHES MAXIMUM IN, head_height: 0.188 INCHES NOMINAL IN, thread_class: 3A A, grip_diameter: 0.309 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN. This part is cataloged in the U.S.
Government catalog under NSN 5306-01-009-6638, 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 | 2.815 INCHES MINIMUM AND 2.875 INCHES MAXIMUM IN |
| head_height | 0.188 INCHES NOMINAL IN |
| thread_class | 3A A |
| grip_diameter | 0.309 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| thread_length | 0.875 INCHES MINIMUM AND 0.935 INCHES MAXIMUM IN |
| fastener_length | 3.750 INCHES NOMINAL IN |
| thread_direction | RIGHT-HAND |
| width_between_flats | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| nominal_thread_diameter | 0.3125 INCHES IN |
| thread_quantity_per_inch | 24 |
| NSN | 5306-01-009-6638 |
| SURFACE FINISH | 32.0 MICROINCHES THREADS |
| SURFACE FINISH | 32.0 MICROINCHES GRIP |
| SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| HEAD HEIGHT | 0.188 INCHES NOMINAL IN |
| FASTENER LENGTH | 3.865 INCHES MINIMUM AND 3.885 INCHES MAXIMUM IN |
| THREAD LENGTH | 0.865 INCHES MINIMUM AND 0.945 INCHES MAXIMUM IN |
| HARDNESS RATING | 24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| NOMINAL THREAD DIAMETER | 0.312 INCHES IN |
| FEATURES PROVIDED | FINISHED HEAD |
No substitute or cross-reference records for this part.