The BOLT,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: DOUBLE HEXAGON W/HOLE, head_height: 0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN, thread_class: 1A A, thread_length: 0.407 INCHES MINIMUM AND 0.412 INCHES MAXIMUM IN, fastener_length: 0.760 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-811-7451, 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 | DOUBLE HEXAGON W/HOLE |
| head_height | 0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN |
| thread_class | 1A A |
| thread_length | 0.407 INCHES MINIMUM AND 0.412 INCHES MAXIMUM IN |
| fastener_length | 0.760 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN |
| thread_direction | RIGHT-HAND |
| width_between_flats | 0.304 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN |
| nominal_thread_diameter | 0.250 INCHES IN |
| extended_washer_diameter | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN |
| first_diameter_from_head | 0.266 INCHES NOMINAL IN |
| thread_quantity_per_inch | 28 |
| NSN | 5306-00-811-7451 |
| THREAD DIRECTION | RIGHT-HAND |
| EXTENDED WASHER DIAMETER | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN |
| HEAD STYLE | DOUBLE HEXAGON W/HOLE |
| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.250 INCHES IN |
| HEAD HEIGHT | 0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN |
| SECOND DIAMETER FROM HEAD | 0.203 INCHES NOMINAL IN |
| MATERIAL | STEEL OVERALL |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.348 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN |
| WIDTH BETWEEN FLATS | 0.304 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN |