342221: 342221.
The 342221 is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4037 OVERALL, head_style: CROWNED HEXAGON, head_height: 0.250 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.600 INCHES MINIMUM AND 0.620 INCHES MAXIMUM IN, shoulder_shape: ROUND FIRST SHOULDER. This part is cataloged in the U.S.
Government catalog under NSN 2840-00-611-4271, 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 4037 OVERALL |
| head_style | CROWNED HEXAGON |
| head_height | 0.250 INCHES NOMINAL IN |
| thread_class | 2A A |
| thread_length | 0.600 INCHES MINIMUM AND 0.620 INCHES MAXIMUM IN |
| shoulder_shape | ROUND FIRST SHOULDER |
| fastener_length | 1.390 INCHES MINIMUM AND 1.430 INCHES MAXIMUM IN |
| hardness_rating | 28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL |
| shoulder_length | 0.790 INCHES MINIMUM AND 0.810 INCHES MAXIMUM FIRST SHOULDER IN |
| special_features | NYLON STRIP LOCKING FEATURE IN THREADS |
| thread_direction | RIGHT-HAND |
| shoulder_diameter | 0.540 INCHES MINIMUM AND 0.560 INCHES MAXIMUM FIRST SHOULDER IN |
| NSN | 2840-00-611-4271 |
No substitute or cross-reference records for this part.