The MS21387-05 is a the manufacturer industrial component. Key specifications include overall_depth: 0.460 INCHES MAXIMUM IN, inside_diameter: 0.252 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN, outside_diameter: 0.750 INCHES NOMINAL IN, screw_drive_type: HEXAGON SOCKET, style_designator: ROUND, attachment_method: SETSCREWS. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5355-01-205-5115, 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 | 0.460 INCHES MAXIMUM IN |
| inside_diameter | 0.252 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN |
| outside_diameter | 0.750 INCHES NOMINAL IN |
| screw_drive_type | HEXAGON SOCKET |
| style_designator | ROUND |
| attachment_method | SETSCREWS |
| overall_thickness | 0.630 INCHES NOMINAL IN |
| nominal_thread_size | 0.164 INCHES SCREW HOLE IN |
| setscrew_hole_quantity | 2 |
| thread_quantity_per_inch | 32 SCREW HOLE |
| thread_series_designator | UNIFIED NATIONAL COARSE (UNC) SCREW HOLE |
| shaft_accommodation_style | ROUND |
| NSN | 5355-01-205-5115 |
| SHAFT ACCOMMODATION STYLE | ROUND |
| DISTANCE FROM HOLE CENTER TO KNOB/SKIRT BASE | 0.190 INCHES NOMINAL IN |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) SCREW HOLE |
| THREAD QUANTITY PER INCH | 32 SCREW HOLE |
| STYLE DESIGNATOR | ROUND |
| NOMINAL THREAD SIZE | 0.164 INCHES SCREW HOLE IN |
| GRIPPING SURFACE CONDITION | GRIP AID |
| INSIDE DIAMETER | 0.252 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN |
| OUTSIDE DIAMETER | 0.750 INCHES NOMINAL IN |
| OVERALL DEPTH | 0.460 INCHES MAXIMUM IN |