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Technical Data Sheet
PartsTable / COMPONENT / 20-40H
20-40H ✓ 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 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 shape: STRAIGHT, length: 2.000 INCHES NOMINAL IN, diameter: 0.250 INCHES NOMINAL IN, material: CARBIDE, mounting_shank: INCLUDED, overall_diameter: 0.625 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3455-01-232-8411, 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
20-40H
NSN: 3455-01-232-8411
FSC: 3455
CAGE: 33886 — JOHNSON CARBIDE PRODUCTS INC (USA)
SPECIFICATIONS
shapeSTRAIGHT
length2.000 INCHES NOMINAL IN
diameter0.250 INCHES NOMINAL IN
materialCARBIDE
mounting_shankINCLUDED
overall_diameter0.625 INCHES NOMINAL IN
style_designatorCONE SHAPE
removability_featureNOT INCLUDED
shank_overall_length3.312 INCHES NOMINAL IN
cutter_tooth_cut_styleCOARSE
cutting_surface_length1.312 INCHES NOMINAL IN
cutter_tooth_shaping_methodGROUND FROM SOLID
NSN3455-01-232-8411
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,ELECTROLYTIC TITLE COMPONENT PN 20-40H MFR CAPACITOR,FIXED,ELECTR
KEY FEATURES
•
DIAMETER: 0.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CONE SHAPE
•
SHAPE: STRAIGHT
•
MATERIAL: CARBIDE
•
REMOVABILITY FEATURE: NOT INCLUDED
•
SHANK OVERALL LENGTH: 3.312 INCHES NOMINAL IN
•
LENGTH: 2.000 INCHES NOMINAL IN
•
CUTTING SURFACE LENGTH: 1.312 INCHES NOMINAL IN
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 (FLIS)
DIAMETER0.250 INCHES NOMINAL IN
STYLE DESIGNATORCONE SHAPE
SHAPESTRAIGHT
MATERIALCARBIDE
REMOVABILITY FEATURENOT INCLUDED
SHANK OVERALL LENGTH3.312 INCHES NOMINAL IN
LENGTH2.000 INCHES NOMINAL IN
CUTTING SURFACE LENGTH1.312 INCHES NOMINAL IN
CUTTER TOOTH CUT STYLECOARSE
CUTTER TOOTH STYLE DESIGNATORC4
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
9061WFInterchangeable
interchangeable cross-reference
interchangeable
TC74A-FInterchangeable
interchangeable cross-reference
interchangeable
TCR-254-FInterchangeable
interchangeable cross-reference
interchangeable
71PB2-REDInterchangeable
interchangeable cross-reference
interchangeable
71PB2Interchangeable
interchangeable cross-reference
interchangeable
52477Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20-40H?
20-40H is a CAPACITOR,FIXED,ELECTROLYTIC.
What parts can replace 20-40H?
There are 27 known substitutes for 20-40H: 9061WF, TC74A-F, TCR-254-F and 24 more. Substitute compatibility should be verified for your specific system.
Is 20-40H still available?
20-40H is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026