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M81757/15-2 — Technical Data Sheet

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— · 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 overall_width: 7.688 INCHES NOMINAL IN, overall_height: 8.812 INCHES NOMINAL IN, overall_length: 10.662 INCHES NOMINAL IN, special_features: NICKEL-CADMIUM, HIGH RATE, LOW-MAINTENANCE, VENTED, voltage_in_volts: 24.0, ampere_hour_capacity: 25.00. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6140-01-491-7908, 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
M81757/15-2
NSN: 6140-01-491-7908
FSC: 6140
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
overall_width7.688 INCHES NOMINAL IN
overall_height8.812 INCHES NOMINAL IN
overall_length10.662 INCHES NOMINAL IN
special_featuresNICKEL-CADMIUM, HIGH RATE, LOW-MAINTENANCE, VENTED
voltage_in_volts24.0
ampere_hour_capacity25.00
end_item_identificationT-2C AIRCRAFT TRAINER
NSN6140-01-491-7908
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BATTERY,STORAGE TITLE COMPONENT PN M81757/15-2 MFR BATTERY,STORAGE
KEY FEATURES
•
AMPERE HOUR CAPACITY: 25.00
•
VOLTAGE IN VOLTS: 24.0
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)
OVERALL LENGTH10.662 INCHES NOMINAL IN
AMPERE HOUR CAPACITY25.00
END ITEM IDENTIFICATIONT-2C AIRCRAFT TRAINER
OVERALL WIDTH7.688 INCHES NOMINAL IN
SPECIAL FEATURESNICKEL-CADMIUM, HIGH RATE, LOW-MAINTENANCE, VENTED
VOLTAGE IN VOLTS24.0
OVERALL HEIGHT8.812 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
19470Upgraded Successor
successor cross-reference
successor
6140PL1014133Upgraded Successor
successor cross-reference
successor
RG5-1Upgraded Successor
successor cross-reference
successor
31249-001Upgraded Successor
successor cross-reference
successor
02159-000Upgraded Successor
successor cross-reference
successor
MIL-PRF-81757/10Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M81757/15-2?
M81757/15-2 is a BATTERY,STORAGE.
What parts can replace M81757/15-2?
There are 20 known substitutes for M81757/15-2: 19470, 6140PL1014133, RG5-1 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M81757/15-2?
M81757/15-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6140-01-491-7908. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026