7521739: BOLT,EXTERNALLY RELIEVED BODY.
The BOLT,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.219 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 1.250 INCHES NOMINAL IN, fastener_length: 3.812 INCHES NOMINAL IN. This part is cataloged in the U.S.
Government catalog under NSN 5306-01-078-3958, 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 | 0.219 INCHES NOMINAL IN |
| thread_class | 2A A |
| thread_length | 1.250 INCHES NOMINAL IN |
| fastener_length | 3.812 INCHES NOMINAL IN |
| thread_direction | RIGHT-HAND |
| width_between_flats | 0.594 INCHES NOMINAL IN |
| nominal_thread_diameter | 0.375 INCHES IN |
| first_diameter_from_head | 0.375 INCHES NOMINAL IN |
| thread_quantity_per_inch | 16 |
| thread_series_designator | UNIFIED NATIONAL COARSE (UNC) |
| NSN | 5306-01-078-3958 |
| HEAD HEIGHT | 0.219 INCHES NOMINAL IN |
| FASTENER LENGTH | 3.812 INCHES NOMINAL IN |
| THREAD LENGTH | 1.250 INCHES NOMINAL IN |
| MATERIAL DOCUMENT AND CLASSIFICATION | FF-B-575 GRADE 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| FIRST DIAMETER FROM HEAD | 0.375 INCHES NOMINAL IN |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 2.250 INCHES NOMINAL IN |
| NOMINAL THREAD DIAMETER | 0.375 INCHES IN |
| HEAD STYLE | HEXAGON |
| THREAD DIRECTION | RIGHT-HAND |
| SECOND DIAMETER FROM HEAD | 0.330 INCHES MINIMUM AND 0.334 INCHES MAXIMUM IN |
No substitute or cross-reference records for this part.