The 631521 is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, bore_diameter: 1.225 INCHES NOMINAL IN, inside_diameter: 0.924 INCHES NOMINAL IN, style_designator: CYLINDRICAL, spring_free_length: 2.406 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5999-00-338-8790, 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 OVERALL |
| end_style | SPRING END,SQUARED AND GROUND BOTH ENDS |
| bore_diameter | 1.225 INCHES NOMINAL IN |
| coil_quantity | 8 |
| inside_diameter | 0.924 INCHES NOMINAL IN |
| style_designator | CYLINDRICAL |
| spring_free_length | 2.406 INCHES NOMINAL IN |
| spring_solid_length | 1.172 INCHES NOMINAL IN |
| coil_helix_direction | RIGHT-HAND |
| spring_deflection_rate | 1.344 POUNDS PER INCH NOMINAL LBS |
| material_hardness_rating | 43.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM |
| spring_free_outside_diameter | 1.066 INCHES NOMINAL IN |
| NSN | 5999-00-338-8790 |