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DR31S20 ✓ 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 BATTERY,NONRECHARGEABLE 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: CYLINDRICAL, terminal_type: FLAT SURFACE BASE, overall_height: 1.094 INCHES NOMINAL IN, overall_diameter: 0.547 INCHES NOMINAL IN, voltage_in_volts: 1.5. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2805-00-374-3107, 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
DR31S20
NSN: 2805-00-374-3107
FSC: 2805
CAGE: 66289 — WISCONSIN MOTORS, LLC (USA)
SPECIFICATIONS
shapeCYLINDRICAL
terminal_typeFLAT SURFACE BASE
overall_height1.094 INCHES NOMINAL IN
overall_diameter0.547 INCHES NOMINAL IN
voltage_in_volts1.5
terminal_quantity1
NSN2805-00-374-3107
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BATTERY,NONRECHARGEABLE TITLE COMPONENT PN DR31S20 MFR BATTERY,NONRECHARGEABL
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 8
SUM-3GInterchangeable
interchangeable cross-reference
interchangeable
915Interchangeable
interchangeable cross-reference
interchangeable
POPULAR R6Interchangeable
interchangeable cross-reference
interchangeable
5144-020Interchangeable
Same NIIN cross-reference
interchangeable
5051-020Interchangeable
Same NIIN cross-reference
interchangeable
69012C1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is DR31S20?
DR31S20 is a BATTERY,NONRECHARGEABLE.
What parts can replace DR31S20?
There are 8 known substitutes for DR31S20: SUM-3G, 915, POPULAR R6 and 5 more. Substitute compatibility should be verified for your specific system.
Is DR31S20 still available?
DR31S20 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