The BOLT,INTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8640 OR STEEL COMP 8740 OVERALL, head_style: HEXAGON, head_height: 0.375 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.625 INCHES MINIMUM IN, thread_series: UNF COUNTERBORE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-693-0635, 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 COMP 8640 OR STEEL COMP 8740 OVERALL |
| head_style | HEXAGON |
| head_height | 0.375 INCHES NOMINAL IN |
| thread_class | 2A A |
| thread_length | 0.625 INCHES MINIMUM IN |
| thread_series | UNF COUNTERBORE |
| fastener_length | 3.750 INCHES NOMINAL IN |
| hardness_rating | 37.0 ROCKWELL C MINIMUM OVERALL |
| thread_direction | RIGHT-HAND |
| threads_per_inch | 28 COUNTERBORE |
| counterbore_depth | 0.375 INCHES NOMINAL IN |
| surface_treatment | CADMIUM OVERALL |
| NSN | 5306-00-693-0635 |
| INTERNAL THREAD CLASS | 2B CONCENTRIC HOLE |
| THREADS PER INCH | 28 COUNTERBORE |
| NOMINAL THREAD SIZE | 0.250 INCHES COUNTERBORE IN |
| HEAD STYLE | HEXAGON |
| THREAD SERIES | UNF COUNTERBORE |
| INTERNAL THREAD DIRECTION | RIGHT-HAND COUNTERBORE |
| HEAD HEIGHT | 0.375 INCHES NOMINAL IN |
| THREAD QUANTITY PER INCH | 14 |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES DESIGNATOR | UNF |