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Technical Data Sheet
PartsTable / COMPONENT / CS4320-0001
CS4320-0001 ✓ 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 material: NICKEL ALLOY A, end_similarity: NOT IDENTICAL, overall_length: 8.594 INCHES NOMINAL IN, first_end_style: WOODRUFF KEYWAY, second_end_style: CROSS DRILLED AND EXTERNALLY THREADED, special_features: W/TWO NO. 61 WOODRUFFTED 3.250 IN.

FROM FIRST END TO C OF KEYWAY,0.312 IN. C OF SECOND KEYWAY TO MAJOR DIA 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 3040-00-148-2073, 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
CS4320-0001
NSN: 3040-00-148-2073
FSC: 3040
CAGE: 16236 — DLA LAND AND MARITIME DBA ENGINEERING AND TECHNICAL SUPPORT DIV DOCUMENT STANDARDIZATION DIVISION (VENDOR ITEM DRAWINGS) (USA)
SPECIFICATIONS
materialNICKEL ALLOY A
step_quantity5
end_similarityNOT IDENTICAL
overall_length8.594 INCHES NOMINAL IN
first_end_styleWOODRUFF KEYWAY
second_end_styleCROSS DRILLED AND EXTERNALLY THREADED
special_featuresW/TWO NO. 61 WOODRUFFTED 3.250 IN. FROM FIRST END TO C OF KEYWAY,0.312 IN. C OF SECOND KEYWAY TO MAJOR DIA IN
first_end_diameter0.7500 INCHES NOMINAL IN
second_end_diameter0.5000 INCHES NOMINAL IN
largest_step_diameter0.875 INCHES NOMINAL IN
second_end_hole_depth0.500 INCHES NOMINAL IN
external_keyway_length0.625 INCHES NOMINAL FIRST END IN
NSN3040-00-148-2073
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,ELECTROLYTIC TITLE COMPONENT PN CS4320-0001 MFR CAPACITOR,FIXED,ELECTR
KEY FEATURES
•
FIRST END KEYWAY WIDTH: 0.1863 INCHES NOMINAL IN
•
EXTERNAL KEYWAY LENGTH: 0.625 INCHES NOMINAL FIRST END IN
•
MATERIAL: NICKEL ALLOY A
•
FIRST END DISTANCE FROM KEYWAY CENTER TO END: 0.151 INCHES NOMINAL IN
•
FIRST END DIAMETER: 0.7500 INCHES NOMINAL IN
•
LARGEST STEP DIAMETER: 0.875 INCHES NOMINAL IN
•
SECOND END DISTANCE FROM HOLE CENTER TO END: 0.125 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)
FIRST END KEYWAY WIDTH0.1863 INCHES NOMINAL IN
EXTERNAL KEYWAY LENGTH0.625 INCHES NOMINAL FIRST END IN
MATERIALNICKEL ALLOY A
FIRST END DISTANCE FROM KEYWAY CENTER TO END0.151 INCHES NOMINAL IN
FIRST END DIAMETER0.7500 INCHES NOMINAL IN
LARGEST STEP DIAMETER0.875 INCHES NOMINAL IN
SPECIAL FEATURESW/TWO NO. 61 WOODRUFFTED 3.250 IN. FROM FIRST END TO C OF KEYWAY,0.312 IN. C OF SECOND KEYWAY TO MAJOR DIA IN
SECOND END DISTANCE FROM HOLE CENTER TO END0.125 INCHES NOMINAL IN
SECOND END EXTERNAL THREAD LENGTH0.500 INCHES NOMINAL IN
SECOND END DIAMETER0.5000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
N0041-3 REV D PIECE 28Interchangeable
interchangeable cross-reference
interchangeable
21856-2 PC 9T017Interchangeable
interchangeable cross-reference
interchangeable
21856-1 ITEMS 9T017Interchangeable
interchangeable cross-reference
interchangeable
2183Interchangeable
interchangeable cross-reference
interchangeable
XC482Interchangeable
interchangeable cross-reference
interchangeable
10051646Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CS4320-0001?
CS4320-0001 is a CAPACITOR,FIXED,ELECTROLYTIC.
What parts can replace CS4320-0001?
There are 14 known substitutes for CS4320-0001: N0041-3 REV D PIECE 28, 21856-2 PC 9T017, 21856-1 ITEMS 9T017 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CS4320-0001?
CS4320-0001 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3040-00-148-2073. 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