91259A807: SCREW,SHOULDER.
The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL UNS K03104 OVERALL, head_style: FLAT CHAMFER, head_height: 0.375 INCHES NOMINAL IN, thread_class: 3A A, head_diameter: 0.875 INCHES NOMINAL IN, thread_length: 0.750 INCHES NOMINAL IN. This part is cataloged in the U.S.
Government catalog under NSN 5305-01-499-5309, 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 UNS K03104 OVERALL |
| head_style | FLAT CHAMFER |
| head_height | 0.375 INCHES NOMINAL IN |
| thread_class | 3A A |
| head_diameter | 0.875 INCHES NOMINAL IN |
| thread_length | 0.750 INCHES NOMINAL IN |
| shoulder_shape | ROUND FIRST SHOULDER |
| fastener_length | 4.000 INCHES NOMINAL IN |
| hardness_rating | 32.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM FASTENER |
| shoulder_length | 3.245 INCHES MINIMUM AND 3.255 INCHES MAXIMUM FIRST SHOULDER IN |
| thread_direction | RIGHT-HAND |
| shoulder_diameter | 0.621 INCHES MINIMUM AND 0.627 INCHES MAXIMUM FIRST SHOULDER IN |
| NSN | 5305-01-499-5309 |
| WIDTH ACROSS FLATS | 0.312 INCHES NOMINAL IN |
| HEAD HEIGHT | 0.375 INCHES NOMINAL IN |
| FASTENER LENGTH | 4.000 INCHES NOMINAL IN |
| SHOULDER LENGTH | 3.245 INCHES MINIMUM AND 3.255 INCHES MAXIMUM FIRST SHOULDER IN |
| SHOULDER DIAMETER | 0.621 INCHES MINIMUM AND 0.627 INCHES MAXIMUM FIRST SHOULDER IN |
| THREAD LENGTH | 0.750 INCHES NOMINAL IN |
| SHOULDER SHAPE | ROUND FIRST SHOULDER |
| HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM FASTENER |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A574, HT ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| NOMINAL THREAD DIAMETER | 0.500 INCHES IN |
No substitute or cross-reference records for this part.