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639961 ✓ 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 CHARGER,BATTERY 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: STEEL, construction: ONE-PIECE, outside_diameter: 2.250 INCHES NOMINAL IN, special_features: CHARGE ONE OR TWO 12VOLT BATTERIES, style_designator: CIRCULAR, ac_voltage_rating: 120.0 VOLTS NOMINAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5365-00-860-4702, 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
639961
NSN: 5365-00-860-4702
FSC: 5365
CAGE: 34623 — AM GENERAL LLC (USA)
SPECIFICATIONS
materialSTEEL
constructionONE-PIECE
outside_diameter2.250 INCHES NOMINAL IN
special_featuresCHARGE ONE OR TWO 12VOLT BATTERIES
style_designatorCIRCULAR
ac_voltage_rating120.0 VOLTS NOMINAL
aperture_diameter1.765 INCHES NOMINAL IN
fsc_application_dataDIFFERENTIAL,DRIVING AXLE
end_item_identificationNSN 4920-01-342-2932; TEST STATION, PHOTOMETRIC SYSTEM-SYSTEM COMPONENT
charging_voltage_in_volts12.0 NOMINAL
NSN5365-00-860-4702
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CHARGER,BATTERY TITLE COMPONENT PN 639961 MFR CHARGER,BATTERY
KEY FEATURES
•
CONSTRUCTION: ONE-PIECE
•
FSC APPLICATION DATA: DIFFERENTIAL,DRIVING AXLE
•
OUTSIDE DIAMETER: 2.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL: STEEL
•
APERTURE DIAMETER: 1.765 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)
CONSTRUCTIONONE-PIECE
FSC APPLICATION DATADIFFERENTIAL,DRIVING AXLE
OUTSIDE DIAMETER2.250 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
MATERIALSTEEL
APERTURE DIAMETER1.765 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
30-215-3Interchangeable
interchangeable cross-reference
interchangeable
AMS-QQ-A-200/3Interchangeable
interchangeable cross-reference
interchangeable
QQ-A-200/3Interchangeable
interchangeable cross-reference
interchangeable
1JA3354-4Interchangeable
interchangeable cross-reference
interchangeable
6900-15Interchangeable
interchangeable cross-reference
interchangeable
MDL1-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 639961?
639961 is a CHARGER,BATTERY.
What parts can replace 639961?
There are 23 known substitutes for 639961: 30-215-3, AMS-QQ-A-200/3, QQ-A-200/3 and 20 more. Substitute compatibility should be verified for your specific system.
Is 639961 still available?
639961 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