509-1FD-2M: 509-1FD-2M.
The 509-1FD-2M is a the manufacturer industrial component. Key specifications include overall_depth: 0.520 INCHES MINIMUM IN, inside_diameter: 0.252 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN, outside_diameter: 0.890 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN, screw_drive_type: HEXAGON SOCKET, special_features: FLUORESCENT REF MARKING, style_designator: ROUND. This part is cataloged in the U.S.
Government catalog under NSN 5355-01-180-6678, 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.
| overall_depth | 0.520 INCHES MINIMUM IN |
| inside_diameter | 0.252 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN |
| outside_diameter | 0.890 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN |
| screw_drive_type | HEXAGON SOCKET |
| special_features | FLUORESCENT REF MARKING |
| style_designator | ROUND |
| attachment_method | SETSCREWS |
| counterbore_depth | 0.114 INCHES MINIMUM IN |
| overall_thickness | 0.760 INCHES MINIMUM AND 0.820 INCHES MAXIMUM IN |
| reference_marking | DOT |
| nominal_thread_size | 0.164 INCHES SCREW HOLE IN |
| counterbore_diameter | 0.640 INCHES MINIMUM IN |
| NSN | 5355-01-180-6678 |
| DISTANCE FROM HOLE CENTER TO KNOB/SKIRT BASE | 0.260 INCHES MAXIMUM IN |
| SHAFT ACCOMMODATION STYLE | COUNTERBORED |
| OVERALL THICKNESS | 0.760 INCHES MINIMUM AND 0.820 INCHES MAXIMUM IN |
| MATERIAL TRANSPARENCY | OPAQUE |
| STYLE DESIGNATOR | ROUND |
| OUTSIDE DIAMETER | 0.890 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN |
| COUNTERBORE DEPTH | 0.114 INCHES MINIMUM IN |
| REFERENCE MARKING | DOT |
| SETSCREW HOLE QUANTITY | 2 |
| NOMINAL THREAD SIZE | 0.164 INCHES SCREW HOLE IN |