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Technical Data Sheet
PartsTable / COMPONENT / 946057-508
946057-508 ✓ 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

CAPACITOR,VARIABLE,AIR DIELECTRI. Key specifications include color: BLACK BACKGROUND OVERALL, phase: SINGLE, width: 23.500 INCHES IN, height: 6.156 INCHES NOMINAL IN, length: 26.500 INCHES IN, material: ALUMINUM HANDLE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5940-00-271-7258, 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
946057-508
NSN: 5940-00-271-7258
FSC: 5940
CAGE: 06481 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
colorBLACK BACKGROUND OVERALL
phaseSINGLE
width23.500 INCHES IN
height6.156 INCHES NOMINAL IN
length26.500 INCHES IN
materialALUMINUM HANDLE
disk_typePLAIN
base_width0.500 INCHES NOMINAL IN
base_length1.156 INCHES NOMINAL IN
design_formFULL ROUND
design_typeDRY
flexibilityFLEXIBLE
NSN5940-00-271-7258
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,VARIABLE,AIR DIELECTRI TITLE COMPONENT PN 946057-508 MFR CAPACITOR,VARIABLE,AIR
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 27
809000-412Interchangeable
interchangeable cross-reference
interchangeable
666163-343Interchangeable
interchangeable cross-reference
interchangeable
3908Interchangeable
interchangeable cross-reference
interchangeable
72-6970-963Interchangeable
interchangeable cross-reference
interchangeable
CMD105Interchangeable
interchangeable cross-reference
interchangeable
14334Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 946057-508?
946057-508 is a CAPACITOR,VARIABLE,AIR DIELECTRI.
What parts can replace 946057-508?
There are 27 known substitutes for 946057-508: 809000-412, 666163-343, 3908 and 24 more. Substitute compatibility should be verified for your specific system.
Is 946057-508 still available?
946057-508 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