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: 0.9375 INCHES NOMINAL IN, outside_diameter: 4.1250 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 5310-00-089-9646, 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 | 0.9375 INCHES NOMINAL IN |
| outside_diameter | 4.1250 INCHES NOMINAL IN |
| style_designator | NORMAL ANGLE |
| backface_corner_radius | 0.1250 INCHES NOMINAL IN |
| standard_tolerance_designation | AFBMA CLASS 2 |
| NSN | 5310-00-089-9646 |
| THREAD DIRECTION | RIGHT-HAND |
| SURFACE TREATMENT | CADMIUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| BEARING SURFACE TYPE | CHAMFERED |
| HARDNESS RATING | 25.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM |
| THREAD QUANTITY PER INCH | 20 |
| NOMINAL THREAD SIZE | 0.875 INCHES IN |
| THREAD SERIES | UNEF |
| MATERIAL | STEEL OVERALL |
| WIDTH ACROSS FLATS | 1.115 INCHES MINIMUM AND 1.127 INCHES MAXIMUM IN |