2278720-00: SCREW,SHOULDER.
The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include hole_type: DRILLED, head_style: KNURLED NO. 1, head_height: 0.250 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.562 INCHES NOMINAL IN, shoulder_shape: ROUND OVERALL.
This part is cataloged in the U.S. Government catalog under NSN 5305-01-181-5961, 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.
| hole_type | DRILLED |
| head_style | KNURLED NO. 1 |
| head_height | 0.250 INCHES NOMINAL IN |
| thread_class | 2A A |
| head_diameter | 0.562 INCHES NOMINAL IN |
| hole_quantity | 1 |
| shoulder_shape | ROUND OVERALL |
| fastener_length | 1.380 INCHES NOMINAL IN |
| special_features | SCREW HEAD HAS STRAIGHT KNURL 32 DIAMETER PITCH 70 DEGREE TOOTH ANGLE |
| thread_direction | RIGHT-HAND |
| shoulder_diameter | 0.375 INCHES NOMINAL AND 0.312 INCHES MAXIMUM FIRST SHOULDER IN |
| width_across_flats | 0.190 INCHES NOMINAL IN |
| NSN | 5305-01-181-5961 |
| WIDTH ACROSS FLATS | 0.190 INCHES NOMINAL IN |
| HEAD HEIGHT | 0.250 INCHES NOMINAL IN |
| FASTENER LENGTH | 1.380 INCHES NOMINAL IN |
| SHOULDER DIAMETER | 0.375 INCHES NOMINAL AND 0.312 INCHES MAXIMUM FIRST SHOULDER IN |
| SHOULDER SHAPE | ROUND OVERALL |
| HOLE CONFIGURATION STYLE | HEXAGON CORNERS |
| NOMINAL THREAD DIAMETER | 0.312 INCHES IN |
| HEAD STYLE | KNURLED NO. 1 |
| THREAD DIRECTION | RIGHT-HAND |
| SPECIAL FEATURES | SCREW HEAD HAS STRAIGHT KNURL 32 DIAMETER PITCH 70 DEGREE TOOTH ANGLE |
No substitute or cross-reference records for this part.