MS9556-09: BOLT,MACHINE.
The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, head_style: DOUBLE HEXAGON W/HOLE, head_height: 0.260 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.596 INCHES MINIMUM AND 0.616 INCHES MAXIMUM IN, fastener_length: 0.688 INCHES NOMINAL IN. This part is cataloged in the U.S.
Government catalog under NSN 5306-00-116-7790, 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 | DOUBLE HEXAGON W/HOLE |
| head_height | 0.260 INCHES NOMINAL IN |
| thread_class | 3A A |
| thread_length | 0.596 INCHES MINIMUM AND 0.616 INCHES MAXIMUM IN |
| fastener_length | 0.688 INCHES NOMINAL IN |
| thread_direction | RIGHT-HAND |
| width_between_flats | 0.250 INCHES NOMINAL IN |
| nominal_thread_diameter | 0.190 INCHES IN |
| extended_washer_diameter | 0.375 INCHES NOMINAL IN |
| thread_quantity_per_inch | 32 |
| thread_series_designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| NSN | 5306-00-116-7790 |
| SURFACE FINISH | 32.0 MICROINCHES THREADS |
| SURFACE FINISH | 32.0 MICROINCHES GRIP |
| SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| EXTENDED WASHER THICKNESS | 0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN |
| HEAD HEIGHT | 0.260 INCHES NOMINAL IN |
| FASTENER LENGTH | 0.688 INCHES NOMINAL IN |
| EXTENDED WASHER DIAMETER | 0.375 INCHES NOMINAL IN |
| THREAD LENGTH | 0.596 INCHES MINIMUM AND 0.616 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 |