AS9490: BOLT,MACHINE.
The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, hole_type: DRILLED, head_style: HEXAGON, grip_length: 2.940 INCHES MINIMUM AND 3.000 INCHES MAXIMUM IN, head_height: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, thread_class: 3A A. This part is cataloged in the U.S.
Government catalog under NSN 5306-00-463-0350, 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 |
| hole_type | DRILLED |
| head_style | HEXAGON |
| grip_length | 2.940 INCHES MINIMUM AND 3.000 INCHES MAXIMUM IN |
| head_height | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| thread_class | 3A A |
| hole_diameter | 0.060 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN |
| hole_quantity | 6 |
| thread_length | 0.740 INCHES MINIMUM AND 0.820 INCHES MAXIMUM IN |
| surface_finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| fastener_length | 3.740 INCHES MINIMUM AND 3.760 INCHES MAXIMUM IN |
| hardness_rating | 24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL |
| NSN | 5306-00-463-0350 |
| SURFACE FINISH | 32.0 MICROINCHES THREADS |
| SURFACE FINISH | 32.0 MICROINCHES GRIP |
| SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| HEAD HEIGHT | 0.156 INCHES NOMINAL IN |
| FASTENER LENGTH | 0.875 INCHES NOMINAL IN |
| THREAD LENGTH | 0.750 INCHES MINIMUM AND 0.796 INCHES MAXIMUM IN |
| HARDNESS RATING | 248.0 BRINELL STANDARD MINIMUM AND 341.0 BRINELL STANDARD MAXIMUM OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| NOMINAL THREAD DIAMETER | 0.250 INCHES IN |
| FEATURES PROVIDED | FINISHED HEAD |