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Q8128 — CAPACITOR,FIXED,ELECTROLYTIC

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

Q8128: CAPACITOR,FIXED,ELECTROLYTIC.

The CAPACITOR,FIXED,ELECTROLYTIC is a the manufacturer cache protection component designed to preserve data integrity during power loss events in enterprise server and storage controller environments. Key specifications include material: STEEL COMP E52100 OVERALL, overall_length: 0.5620 INCHES NOMINAL IN, style_designator: NEEDLE ROLLER, FLAT ENDS, rolling_element_diameter: 0.3125 INCHES NOMINAL IN, material_document_and_classification: AISI 52100 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-021-2556, 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
Q8128
NSN: 3110-01-021-2556
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 60380 — TIMKEN AEROSPACE, INC DBA TORRINGTON PRODUCT (USA)
SPECIFICATIONS
materialSTEEL COMP E52100 OVERALL
overall_length0.5620 INCHES NOMINAL IN
style_designatorNEEDLE ROLLER, FLAT ENDS
rolling_element_diameter0.3125 INCHES NOMINAL IN
material_document_and_classificationAISI 52100 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN3110-01-021-2556
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: Q8128 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
ROLLING ELEMENT DIAMETER: 0.3125 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NEEDLE ROLLER, FLAT ENDS
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI 52100 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL COMP E52100 OVERALL
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS
ROLLING ELEMENT DIAMETER0.3125 INCHES NOMINAL IN
STYLE DESIGNATORNEEDLE ROLLER, FLAT ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONAISI 52100 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH0.5620 INCHES NOMINAL IN
MATERIALSTEEL COMP E52100 OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is Q8128?
Q8128 is a CAPACITOR,FIXED,ELECTROLYTIC.
What is the NSN for Q8128?
Q8128 is cataloged in the U.S. Government catalog under NSN 3110-01-021-2556. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.