MILB857TYPE3GRADE5: BOLT,MACHINE.
The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.328 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.750 INCHES MINIMUM IN, fastener_length: 2.750 INCHES NOMINAL IN. This part is cataloged in the U.S.
Government catalog under NSN 5306-00-174-0533, 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 | 0.328 INCHES NOMINAL IN |
| thread_class | 3A A |
| thread_length | 0.750 INCHES MINIMUM IN |
| fastener_length | 2.750 INCHES NOMINAL IN |
| hardness_rating | 23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| special_features | 3-HOLES DRILLED IN HEAD |
| thread_direction | RIGHT-HAND |
| features_provided | FINISHED HEAD |
| width_between_flats | 0.603 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| nominal_thread_diameter | 0.438 INCHES IN |
| NSN | 5306-00-174-0533 |
| HEAD HEIGHT | 0.234 INCHES NOMINAL IN |
| FASTENER LENGTH | 0.625 INCHES NOMINAL IN |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-P-16232,TY Z,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THREAD LENGTH | 0.625 INCHES MAXIMUM IN |
| HARDNESS RATING | 23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| NOMINAL THREAD DIAMETER | 0.312 INCHES IN |
| FEATURES PROVIDED | FINISHED HEAD |
| HEAD STYLE | HEXAGON |
| THREAD DIRECTION | RIGHT-HAND |
| DEPARTURE FROM CITED DESIGNATOR | ASMODIFIED BY SURFACE TREATMENT AND HEAD SIZE |