5178817: BOLT,EXTERNALLY RELIEVED BODY.
The BOLT,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.438 INCHES MINIMUM IN, fastener_length: 2.500 INCHES NOMINAL IN. This part is cataloged in the U.S.
Government catalog under NSN 5306-00-558-8187, 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 | 0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN |
| thread_class | 2A A |
| thread_length | 0.438 INCHES MINIMUM IN |
| fastener_length | 2.500 INCHES NOMINAL IN |
| thread_direction | RIGHT-HAND |
| width_between_flats | 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| nominal_thread_diameter | 0.312 INCHES IN |
| first_diameter_from_head | 0.266 INCHES NOMINAL IN |
| thread_quantity_per_inch | 24 |
| thread_series_designator | UNF |
| NSN | 5306-00-558-8187 |
| HEAD HEIGHT | 0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN |
| FASTENER LENGTH | 2.500 INCHES NOMINAL IN |
| THREAD LENGTH | 0.438 INCHES MINIMUM IN |
| FIRST DIAMETER FROM HEAD | 0.266 INCHES NOMINAL IN |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 2.062 INCHES NOMINAL IN |
| NOMINAL THREAD DIAMETER | 0.312 INCHES IN |
| HEAD STYLE | HEXAGON |
| THREAD DIRECTION | RIGHT-HAND |
| SECOND DIAMETER FROM HEAD | 0.312 INCHES NOMINAL IN |
| WIDTH BETWEEN FLATS | 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
No substitute or cross-reference records for this part.