HL557-6-4: PIN-RIVET.
The PIN-RIVET is a the manufacturer industrial component. Key specifications include material: STEEL COMP E4340 OR STEEL COMP 4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OVERALL, head_style: FLUSH COUNTERSUNK, grip_length: 0.275 INCHES MAXIMUM IN, shank_style: PIN-RIVET, STRAIGHT, THREADED, thread_class: 3A A, shank_diameter: 0.2016 INCHES MINIMUM AND 0.2026 INCHES MAXIMUM IN. This part is cataloged in the U.S.
Government catalog under NSN 5320-00-414-6171, 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 E4340 OR STEEL COMP 4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OVERALL |
| head_style | FLUSH COUNTERSUNK |
| grip_length | 0.275 INCHES MAXIMUM IN |
| shank_style | PIN-RIVET, STRAIGHT, THREADED |
| thread_class | 3A A |
| shank_diameter | 0.2016 INCHES MINIMUM AND 0.2026 INCHES MAXIMUM IN |
| shear_strength | 95000 SINGLE POUNDS PER SQUARE INCH |
| fastener_length | 0.620 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN |
| thread_direction | RIGHT-HAND |
| countersink_angle | 100.0 DEGREES NOMINAL |
| surface_treatment | CADMIUM OVERALL |
| head_major_diameter | 0.297 INCHES MINIMUM AND 0.302 INCHES MAXIMUM IN |
| NSN | 5320-00-414-6171 |