128CM12245-3: BOLT,INTERNALLY RELIEVED BODY.
The BOLT,INTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP E4340 OR STEEL COMP 4340 OVERALL, head_style: HEXAGON, head_height: 0.375 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.572 INCHES MINIMUM IN, fastener_length: 3.932 INCHES MINIMUM AND 3.962 INCHES MAXIMUM IN. This part is cataloged in the U.S.
Government catalog under NSN 5306-00-063-9148, 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 E4340 OR STEEL COMP 4340 OVERALL |
| head_style | HEXAGON |
| head_height | 0.375 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
| thread_class | 3A A |
| thread_length | 0.572 INCHES MINIMUM IN |
| fastener_length | 3.932 INCHES MINIMUM AND 3.962 INCHES MAXIMUM IN |
| hardness_rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| style_designator | COUNTERBORE UNTHREADED |
| thread_direction | RIGHT-HAND |
| surface_treatment | CADMIUM OVERALL |
| width_between_flats | 1.052 INCHES MINIMUM AND 1.064 INCHES MAXIMUM IN |
| nominal_thread_diameter | 0.750 INCHES IN |
| NSN | 5306-00-063-9148 |
| HEAD HEIGHT | 0.375 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
| FASTENER LENGTH | 3.932 INCHES MINIMUM AND 3.962 INCHES MAXIMUM IN |
| THREAD LENGTH | 0.572 INCHES MINIMUM IN |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| SHANK UNTHREADED HOLE DIAMETER | 0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM FIRST HOLE IN |
| STYLE DESIGNATOR | COUNTERBORE UNTHREADED |
| NOMINAL THREAD DIAMETER | 0.750 INCHES IN |
| HEAD STYLE | HEXAGON |
| THREAD DIRECTION | RIGHT-HAND |
| WIDTH BETWEEN FLATS | 1.052 INCHES MINIMUM AND 1.064 INCHES MAXIMUM IN |
No substitute or cross-reference records for this part.