The FAN,CIRCULATING is a the manufacturer thermal management component critical for maintaining optimal operating temperatures in enterprise hardware. Key specifications include head_style: DOUBLE CHAMFER, head_height: 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.425 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN, thread_length: 0.448 INCHES MAXIMUM IN, screw_material: STEEL. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4140-00-931-8500, 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.
| head_style | DOUBLE CHAMFER |
| head_height | 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| thread_class | 2A A |
| head_diameter | 0.425 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN |
| thread_length | 0.448 INCHES MAXIMUM IN |
| screw_material | STEEL |
| fastener_length | 0.345 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| special_features | THREAD-ROLLING SCREWS; FINISH 0.0002 ZINC BAKE, BLACK DI-CHROMATE, WITH LIGHT WAX, DRY TO TOUCH |
| thread_direction | RIGHT-HAND |
| internal_drive_style | TORX |
| spline_major_diameter | 0.200 INCHES NOMINAL IN |
| supplementary_features | SUPPLIER MUST PROVIDE CERTIFICATION THAT PARTS HAVE BEEN BAKED FOR HYDROGEN EMBRITTLEMENT RELIEF AND TESTED TO VERIFY PARTS MEET THE SPECIFICATION REQUIREMENTS |
| NSN | 4140-00-931-8500 |