S1591: BOLT,MACHINE.
The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.290 INCHES NOMINAL IN, thread_length: 1.130 INCHES NOMINAL IN, fastener_length: 1.500 INCHES NOMINAL IN, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.
Government catalog under NSN 5306-00-637-4976, 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 | STEEL OVERALL |
| head_style | HEXAGON |
| head_height | 0.290 INCHES NOMINAL IN |
| thread_length | 1.130 INCHES NOMINAL IN |
| fastener_length | 1.500 INCHES NOMINAL IN |
| thread_direction | RIGHT-HAND |
| surface_treatment | OIL AND PHOSPHATE OVERALL |
| width_between_flats | 0.560 INCHES NOMINAL IN |
| nominal_thread_diameter | 0.375 INCHES IN |
| minimum_tensile_strength | 150000 POUNDS PER SQUARE INCH LBS |
| thread_quantity_per_inch | 16 |
| thread_series_designator | UNIFIED NATIONAL COARSE (UNC) |
| NSN | 5306-00-637-4976 |
| HEAD HEIGHT | 0.273 INCHES MINIMUM AND 0.289 INCHES MAXIMUM IN |
| FASTENER LENGTH | 1.500 INCHES NOMINAL IN |
| THREAD LENGTH | 1.125 INCHES MINIMUM IN |
| HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| NOMINAL THREAD DIAMETER | 0.375 INCHES IN |
| FEATURES PROVIDED | FINISHED HEAD |
| HEAD STYLE | HEXAGON |
| THREAD DIRECTION | RIGHT-HAND |
| GRIP LENGTH | 0.375 INCHES NOMINAL IN |
| WIDTH BETWEEN FLATS | 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN |
No substitute or cross-reference records for this part.