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EVEREADY 531 ✓ 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: SNAP-ON TOP, overall_length: 2.288 INCHES MINIMUM AND 2.412 INCHES MAXIMUM IN, overall_diameter: 0.645 INCHES MINIMUM AND 0.664 INCHES MAXIMUM IN, voltage_in_volts: 4.5, battery_electrolyte: ALKALINE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6135-00-947-7091, 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
EVEREADY 531
NSN: 6135-00-947-7091
FSC: 6135
CAGE: 90303 — DURACELL INC (USA)
SPECIFICATIONS
shapeCYLINDRICAL
terminal_typeSNAP-ON TOP
overall_length2.288 INCHES MINIMUM AND 2.412 INCHES MAXIMUM IN
overall_diameter0.645 INCHES MINIMUM AND 0.664 INCHES MAXIMUM IN
voltage_in_volts4.5
terminal_quantity2
battery_electrolyteALKALINE
NSN6135-00-947-7091
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BATTERY,NONRECHARGEABLE TITLE COMPONENT PN EVEREADY 531 MFR BATTERY,NONRECHARGEABL
KEY FEATURES
•
VOLTAGE IN VOLTS: 4.5
•
BATTERY ELECTROLYTE: ALKALINE
•
OVERALL DIAMETER: 0.645 INCHES MINIMUM AND 0.664 INCHES MAXIMUM IN
•
TERMINAL QUANTITY: 2
•
TERMINAL TYPE: SNAP-ON TOP
•
SHAPE: CYLINDRICAL
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)
VOLTAGE IN VOLTS4.5
BATTERY ELECTROLYTEALKALINE
OVERALL LENGTH2.288 INCHES MINIMUM AND 2.412 INCHES MAXIMUM IN
OVERALL DIAMETER0.645 INCHES MINIMUM AND 0.664 INCHES MAXIMUM IN
TERMINAL QUANTITY2
TERMINAL TYPESNAP-ON TOP
SHAPECYLINDRICAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
567JMInterchangeable
interchangeable cross-reference
interchangeable
531LInterchangeable
interchangeable cross-reference
interchangeable
3307236RAPC52Interchangeable
interchangeable cross-reference
interchangeable
D67-985-12RAPC52Interchangeable
interchangeable cross-reference
interchangeable
B15528GR5Interchangeable
interchangeable cross-reference
interchangeable
PX19Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is EVEREADY 531?
EVEREADY 531 is a BATTERY,NONRECHARGEABLE.
What parts can replace EVEREADY 531?
There are 11 known substitutes for EVEREADY 531: 567JM, 531L, 3307236RAPC52 and 8 more. Substitute compatibility should be verified for your specific system.
Is EVEREADY 531 still available?
EVEREADY 531 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