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Technical Data Sheet
51877 ✓ Verified by PartsTable
Disguise · 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 Disguise cache protection component designed to preserve data integrity during power loss events in enterprise server and storage controller environments. Key specifications include shape: CYLINDRICAL, material: STEEL CORROSION RESISTING BODY, leg_length: 1.094 INCHES NOMINAL IN, seat_angle: 37.0 DEGREES, thread_class: 3A ALL ENDS A, terminal_type: FLAT SURFACE TOP. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5365-00-152-0768, 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
51877
NSN: 5365-00-152-0768
FSC: 5365
CAGE: 98675 — ESPEY MFG. & ELECTRONICS CORP. (USA)
SPECIFICATIONS
shapeCYLINDRICAL
materialSTEEL CORROSION RESISTING BODY
leg_length1.094 INCHES NOMINAL IN
seat_angle37.0 DEGREES
thread_class3A ALL ENDS A
terminal_typeFLAT SURFACE TOP
overall_length2.694 INCHES NOMINAL IN
connection_typeTHREADED EXTERNAL TUBE FIRST FLUID END CONNECTION
first_end_styleCHAMFERED
hardness_rating30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
connection_styleFLARED ALL ENDS
overall_diameter0.965 INCHES NOMINAL IN
NSN5365-00-152-0768
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: Disguise BATTERY,NONRECHARGEABLE TITLE COMPONENT PN 51877 MFR Disguise BATTERY,NONRECHARGEABL
KEY FEATURES
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/8,5052-H3 FED SPEC SINGLE MATERIAL RESPONSE
MATERIAL: ALUMINUM ALLOY
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-554 TYPE 1,GRADE C,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE
SURFACE TREATMENT: CHROMATE
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)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/8,5052-H3 FED SPEC SINGLE MATERIAL RESPONSE
MATERIALALUMINUM ALLOY
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-554 TYPE 1,GRADE C,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE
SURFACE TREATMENTCHROMATE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
51877Interchangeable
interchangeable cross-reference
interchangeable
2134366Interchangeable
interchangeable cross-reference
interchangeable
2134366-2Interchangeable
interchangeable cross-reference
interchangeable
Q/E2BP/R1019 POS. 073Interchangeable
interchangeable cross-reference
interchangeable
CR2450NInterchangeable
IBM 3V Lithium Coin battery OEM
interchangeable
DL2450Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 51877?
51877 is a BATTERY,NONRECHARGEABLE manufactured by Disguise.
What parts can replace 51877?
There are 6 known substitutes for 51877: 51877, 2134366, 2134366-2 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 51877?
51877 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5365-00-152-0768. This indicates validated use in U.S. government and defense supply chains.
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