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ST590 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The BEARING,ROLLER,TAPERED is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: STEEL OVERALL, cup_width: 0.9375 INCHES NOMINAL IN, cone_width: 1.1875 INCHES NOMINAL IN, bore_diameter: 1.6250 INCHES NOMINAL IN, overall_width: 1.1875 INCHES NOMINAL IN, standout_width: 0.2500 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4910-00-896-0997, 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.

WHERE IT FITS
ST590
NSN: 4910-00-896-0997
FSC: 4910
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cup_width0.9375 INCHES NOMINAL IN
cone_width1.1875 INCHES NOMINAL IN
bore_diameter1.6250 INCHES NOMINAL IN
overall_width1.1875 INCHES NOMINAL IN
standout_width0.2500 INCHES NOMINAL IN
style_designatorSTRAIGHT BORE, NORMAL ANGLE
cone_corner_radius0.1400 INCHES NOMINAL IN
backface_corner_radius0.1250 INCHES NOMINAL IN
overall_outside_diameter3.3750 INCHES NOMINAL IN
nondefinitive_spec/std_data751 TYPE
standard_tolerance_designationAFBMA CLASS 2
NSN4910-00-896-0997
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BEARING,ROLLER,TAPERED TITLE COMPONENT PN ST590 MFR BEARING,ROLLER,TAPERED
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
59726HInterchangeable
interchangeable cross-reference
interchangeable
3877-3820Interchangeable
interchangeable cross-reference
interchangeable
54-24Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ST590?
ST590 is a BEARING,ROLLER,TAPERED.
What parts can replace ST590?
There are 3 known substitutes for ST590: 59726H, 3877-3820, 54-24. Substitute compatibility should be verified for your specific system.
What is the NSN for ST590?
ST590 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4910-00-896-0997. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026