120B399H01: BOLT,EXTERNALLY RELIEVED BODY.
The BOLT,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 431 OVERALL, head_style: HEXAGON, head_height: 0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.608 INCHES NOMINAL IN, fastener_length: 1.828 INCHES NOMINAL IN. This part is cataloged in the U.S.
Government catalog under NSN 5306-01-021-9150, 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 431 OVERALL |
| head_style | HEXAGON |
| head_height | 0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN |
| thread_class | 3A A |
| thread_length | 0.608 INCHES NOMINAL IN |
| fastener_length | 1.828 INCHES NOMINAL IN |
| hardness_rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| thread_direction | RIGHT-HAND |
| surface_treatment | PASSIVATE OVERALL |
| width_between_flats | 0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN |
| nominal_thread_diameter | 0.375 INCHES IN |
| first_diameter_from_head | 0.312 INCHES NOMINAL IN |
| NSN | 5306-01-021-9150 |
| HEAD HEIGHT | 0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN |
| FASTENER LENGTH | 1.828 INCHES NOMINAL IN |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THREAD LENGTH | 0.608 INCHES NOMINAL IN |
| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-18732 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| FIRST DIAMETER FROM HEAD | 0.312 INCHES NOMINAL IN |
| NOMINAL THREAD DIAMETER | 0.375 INCHES IN |
| HEAD STYLE | HEXAGON |
| THREAD DIRECTION | RIGHT-HAND |
No substitute or cross-reference records for this part.