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PartsTable / COMPONENT / 1290C-4
1290C-4 ✓ 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 color: BLACK, LUSTERLESS, material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT, unit_type: COAXIAL LINE, case_style: RECESSED, flow_angle: 45.0 DEGREES FIRST END, head_style: HEXAGON. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5940-00-926-0024, 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
1290C-4
NSN: 5940-00-926-0024
FSC: 5940
CAGE: 81312 — WINCHESTER INTERCONNECT CORPORATION DBA WINCHESTER INTERCONNECT DIV WINCHESTER INTERCONNECT (USA)
SPECIFICATIONS
colorBLACK, LUSTERLESS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
unit_typeCOAXIAL LINE
case_styleRECESSED
flow_angle45.0 DEGREES FIRST END
head_styleHEXAGON
seal_width0.625 INCHES NOMINAL IN
seat_angle37.0 DEGREES FIRST END
body_length1.420 INCHES NOMINAL IN
design_typeBIDIRECTIONAL
skirt_styleFLARED
temp_rating-65.0 FAHRENHEIT AND 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
NSN5940-00-926-0024
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,ELECTROLYTIC TITLE COMPONENT PN 1290C-4 MFR CAPACITOR,FIXED,ELECTR
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
1762BInterchangeable
interchangeable cross-reference
interchangeable
5063Interchangeable
interchangeable cross-reference
interchangeable
40700Interchangeable
interchangeable cross-reference
interchangeable
70052Interchangeable
interchangeable cross-reference
interchangeable
H3247Interchangeable
interchangeable cross-reference
interchangeable
197Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1290C-4?
1290C-4 is a CAPACITOR,FIXED,ELECTROLYTIC.
What parts can replace 1290C-4?
There are 29 known substitutes for 1290C-4: 1762B, 5063, 40700 and 26 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1290C-4?
1290C-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5940-00-926-0024. 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