The MS91531-4B2B is a the manufacturer industrial component. Key specifications include shank_style: STRAIGHT, shank_length: 0.438 INCHES NOMINAL IN, overall_depth: 0.500 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN, shank_diameter: 1.734 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN, inside_diameter: 0.252 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN, outside_diameter: 2.375 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System under NSN 5355-00-721-8084, 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.
| shank_style | STRAIGHT |
| shank_length | 0.438 INCHES NOMINAL IN |
| overall_depth | 0.500 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| shank_diameter | 1.734 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN |
| inside_diameter | 0.252 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN |
| outside_diameter | 2.375 INCHES NOMINAL IN |
| screw_drive_type | HEXAGON SOCKET |
| style_designator | ROUND |
| attachment_method | SETSCREWS |
| overall_thickness | 0.875 INCHES NOMINAL IN |
| nominal_thread_size | 0.138 INCHES SCREW HOLE IN |
| setscrew_hole_quantity | 2 |
| NSN | 5355-00-721-8084 |
| DISTANCE FROM HOLE CENTER TO KNOB/SKIRT BASE | 0.250 INCHES NOMINAL IN |
| GRIPPING SURFACE CONDITION | GRIP AID |
| OVERALL THICKNESS | 0.875 INCHES NOMINAL IN |
| SCREW DRIVE TYPE | HEXAGON SOCKET |
| ATTACHMENT METHOD | SETSCREWS |
| STYLE DESIGNATOR | ROUND |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) SCREW HOLE |
| COLOR | BLACK |
| THREAD QUANTITY PER INCH | 32 SCREW HOLE |
| NOMINAL THREAD SIZE | 0.138 INCHES SCREW HOLE IN |