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639-959 — CHARGER,BATTERY

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

639-959: CHARGER,BATTERY.

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, frequency_rating: 50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL, outside_diameter: 2.2500 INCHES NOMINAL IN, special_features: POWER INDICATOR LIGHT, style_designator: CIRCULAR. This part is cataloged in the U.S.

Government catalog under NSN 5365-00-860-4701, 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
639-959
NSN: 5365-00-860-4701
NIINs: 008604701, 014446497
FSC: 5365 — Bushings, Rings, Shims, and Spacers
CAGE: 34623 — AM GENERAL LLC (USA)
SPECIFICATIONS
materialSTEEL
constructionONE-PIECE
frequency_rating50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL
outside_diameter2.2500 INCHES NOMINAL IN
special_featuresPOWER INDICATOR LIGHT
style_designatorCIRCULAR
ac_voltage_rating110.0 VOLTS NOMINAL
aperture_diameter1.7650 INCHES NOMINAL IN
fsc_application_dataDIFFERENTIAL,DRIVING AXLE
battery_type_for_which_designedNICKEL-CADMIUM
NSN5365-00-860-4701
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CHARGER,BATTERY TITLE COMPONENT PN 639-959 MFR CHARGER,BATTERY
KEY FEATURES
•
FSC APPLICATION DATA: DIFFERENTIAL,DRIVING AXLE
•
STYLE DESIGNATOR: CIRCULAR
•
OUTSIDE DIAMETER: 2.2500 INCHES NOMINAL IN
•
APERTURE DIAMETER: 1.7650 INCHES NOMINAL IN
•
MATERIAL: STEEL
•
CONSTRUCTION: ONE-PIECE
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
FSC APPLICATION DATADIFFERENTIAL,DRIVING AXLE
STYLE DESIGNATORCIRCULAR
OUTSIDE DIAMETER2.2500 INCHES NOMINAL IN
APERTURE DIAMETER1.7650 INCHES NOMINAL IN
MATERIALSTEEL
CONSTRUCTIONONE-PIECE
SUBSTITUTES & CROSS-REFERENCES 7
GPW4229AReference document
Same NSN cross-reference
Reference document — Secondary reference
R20951Reference document
Same NSN cross-reference
Reference document — Secondary reference
SM30215-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
02009-0065-01Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
S58SReference document
Same NSN cross-reference
Reference document — Secondary reference
S58Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 639-959?
639-959 is a CHARGER,BATTERY.
What parts can replace 639-959?
There are 7 known substitutes for 639-959: GPW4229A, R20951, SM30215-1 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 639-959?
639-959 is cataloged in the U.S. Government catalog under NSN 5365-00-860-4701. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.