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Technical Data Sheet
BB640U ✓ 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,STORAGE 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: ALUMINUM CASE, temp_rating: -18.0 CELSIUS DEGC, cell_quantity: 12, overall_width: 10.000 INCHES NOMINAL IN, terminal_type: STRAIGHT POST, overall_height: 7.750 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6140-00-406-2635, 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
BB640U
NSN: 6140-00-406-2635
FSC: 6140
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialALUMINUM CASE
temp_rating-18.0 CELSIUS DEGC
cell_quantity12
overall_width10.000 INCHES NOMINAL IN
terminal_typeSTRAIGHT POST
overall_height7.750 INCHES NOMINAL IN
overall_length9.219 INCHES NOMINAL IN
submersibilityNONSUBMERSIBLE
case_design_typeFILLING PLUG OPENINGS
voltage_in_volts24.0
terminal_quantity2
battery_electrolyteACID
NSN6140-00-406-2635
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BATTERY,STORAGE TITLE COMPONENT PN BB640U MFR BATTERY,STORAGE
KEY FEATURES
TERMINAL QUANTITY: 2
DISCHARGE RATE IN AMPS: 54.00
TERMINAL TYPE: STRAIGHT POST
TEMP RATING: -18.0 CELSIUS DEGC
DISCHARGE TIME IN MINUTES: 5.0
AMPERE HOUR CAPACITY: 11.00
CELL QUANTITY: 12
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)
TERMINAL QUANTITY2
DISCHARGE RATE IN AMPS54.00
TERMINAL TYPESTRAIGHT POST
TEMP RATING-18.0 CELSIUS DEGC
DISCHARGE TIME IN MINUTES5.0
AMPERE HOUR CAPACITY11.00
OVERALL HEIGHT7.750 INCHES NOMINAL IN
CELL QUANTITY12
CASE DESIGN TYPEFILLING PLUG OPENINGS
OVERALL LENGTH9.219 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
MIL-B-83769Upgraded Successor
successor cross-reference
successor
M83769/4-1Upgraded Successor
successor cross-reference
successor
G4-1Upgraded Successor
successor cross-reference
successor
DRI-31Interchangeable
interchangeable cross-reference
interchangeable
ISR-31Interchangeable
interchangeable cross-reference
interchangeable
MS28776M2-31Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BB640U?
BB640U is a BATTERY,STORAGE.
What parts can replace BB640U?
There are 20 known substitutes for BB640U: MIL-B-83769, M83769/4-1, G4-1 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BB640U?
BB640U is cataloged in the Federal Logistics Information System (FLIS) under NSN 6140-00-406-2635. This indicates validated use in U.S. government and defense supply chains.
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