FTC 7590-3: 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: 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.375 INCHES NOMINAL IN, fastener_length: 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN. This part is cataloged in the U.S.
Government catalog under NSN 5306-01-472-5391, 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 | 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN |
| thread_class | 2A A |
| thread_length | 0.375 INCHES NOMINAL IN |
| fastener_length | 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN |
| thread_direction | RIGHT-HAND |
| surface_treatment | PASSIVATE AND LUBRICANT OVERALL |
| width_between_flats | 0.242 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN |
| end_item_identification | 1425-01-442-4821 APPROVED BRADLEY AQ |
| nominal_thread_diameter | 0.250 INCHES IN |
| minimum_tensile_strength | 140000 POUNDS PER SQUARE INCH LBS |
| NSN | 5306-01-472-5391 |
| HEAD HEIGHT | 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN |
| FASTENER LENGTH | 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN |
| THREAD LENGTH | 0.375 INCHES NOMINAL IN |
| NOMINAL THREAD DIAMETER | 0.250 INCHES IN |
| HEAD STYLE | HEXAGON |
| THREAD DIRECTION | RIGHT-HAND |
| SECOND DIAMETER FROM HEAD | 0.186 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| WIDTH BETWEEN FLATS | 0.242 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |