The SCREW,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, head_style: KNURLED NO. 1, head_height: 0.312 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.312 INCHES NOMINAL IN, thread_length: 0.250 INCHES MINIMUM IN.
This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-078-0180, 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 303 OVERALL |
| head_style | KNURLED NO. 1 |
| head_height | 0.312 INCHES NOMINAL IN |
| thread_class | 2A A |
| head_diameter | 0.312 INCHES NOMINAL IN |
| thread_length | 0.250 INCHES MINIMUM IN |
| fastener_length | 0.750 INCHES NOMINAL IN |
| thread_direction | RIGHT-HAND |
| surface_treatment | PASSIVATE OVERALL |
| internal_drive_style | SLOT |
| nominal_thread_diameter | 0.138 INCHES IN |
| first_diameter_from_head | 0.095 INCHES NOMINAL IN |
| NSN | 5305-00-078-0180 |
| HEAD DIAMETER | 0.312 INCHES NOMINAL IN |
| THREAD QUANTITY PER INCH | 32 |
| INTERNAL DRIVE STYLE | SLOT |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.407 INCHES NOMINAL IN |
| FASTENER LENGTH | 0.750 INCHES NOMINAL IN |
| THREAD DIRECTION | RIGHT-HAND |
| HEAD HEIGHT | 0.312 INCHES NOMINAL IN |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A582,COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 303 OVERALL |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |