The CUP,TAPERED ROLLER BEARING is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: STEEL OVERALL, overall_width: 1.0625 INCHES NOMINAL IN, outside_diameter: 4.0000 INCHES NOMINAL IN, style_designator: NORMAL ANGLE, backface_corner_radius: 0.1250 INCHES NOMINAL IN, standard_tolerance_designation: AFBMA CLASS 2. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-049-9879, 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 |
| overall_width | 1.0625 INCHES NOMINAL IN |
| outside_diameter | 4.0000 INCHES NOMINAL IN |
| style_designator | NORMAL ANGLE |
| backface_corner_radius | 0.1250 INCHES NOMINAL IN |
| standard_tolerance_designation | AFBMA CLASS 2 |
| NSN | 5306-00-049-9879 |
| THREAD DIRECTION | RIGHT-HAND |
| NOMINAL THREAD DIAMETER | 0.250 INCHES IN |
| HEAD STYLE | HEXAGON |
| FEATURES PROVIDED | FINISHED HEAD |
| HEAD HEIGHT | 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN |
| WIDTH BETWEEN FLATS | 0.431 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN |
| THREAD SERIES DESIGNATOR | UNF |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |