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Technical Data Sheet
PartsTable / MRO / 55181
55181 ✓ Verified by PartsTable
Mobiparts · MRO · MRO_GENERAL
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

CAPACITOR,FIXED,CERAMIC DIELECTR. Key specifications include phase: SINGLE, material: COPPER ALLOY OUTER RACE MEMBER, base_width: 0.570 INCHES NOMINAL IN, slot_width: 0.127 INCHES NOMINAL IN, base_height: 0.578 INCHES NOMINAL IN, flexibility: RIGID. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5975-00-273-0788, 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
MRO→ MRO_GENERAL→ 55181
NSN: 5975-00-273-0788
FSC: 5975
CAGE: 26344 — NEW HAVEN MFG CORP (USA)
SPECIFICATIONS
phaseSINGLE
materialCOPPER ALLOY OUTER RACE MEMBER
base_width0.570 INCHES NOMINAL IN
slot_width0.127 INCHES NOMINAL IN
base_height0.578 INCHES NOMINAL IN
flexibilityRIGID
power_sourceEXTERNAL
bore_diameter0.1895 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM IN
overall_width0.656 INCHES NOMINAL IN
indicator_typeRANGE
overall_length0.687 INCHES NOMINAL IN
hardness_rating56.0 ROCKWELL C MAXIMUM INNER MEMBER
NSN5975-00-273-0788
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: Mobiparts CAPACITOR,FIXED,CERAMIC DIELECTR TITLE COMPONENT PN 55181 MFR Mobiparts CAPACITOR,FIXED,CERAMI
KEY FEATURES
•
ACCOMMODATION HOLE WIDTH: 0.344 INCHES NOMINAL IN
•
BASE WIDTH: 0.570 INCHES NOMINAL IN
•
STYLE DESIGNATOR: REGULAR
•
MOUNTING METHOD: COMPRESSION
•
FLEXIBILITY: RIGID
•
BASE HEIGHT: 0.578 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)
ACCOMMODATION HOLE WIDTH0.344 INCHES NOMINAL IN
BASE WIDTH0.570 INCHES NOMINAL IN
STYLE DESIGNATORREGULAR
OVERALL WIDTH0.656 INCHES NOMINAL IN
MOUNTING METHODCOMPRESSION
SPECIAL FEATURESBLACK COLOR
FLEXIBILITYRIGID
BASE HEIGHT0.578 INCHES NOMINAL IN
OVERALL LENGTH0.687 INCHES NOMINAL IN
MATERIALUNABLE TO DECODE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
5129737Interchangeable
interchangeable cross-reference
interchangeable
55181Interchangeable
interchangeable cross-reference
interchangeable
802788Interchangeable
interchangeable cross-reference
interchangeable
6240PL1338062Interchangeable
interchangeable cross-reference
interchangeable
C2AInterchangeable
interchangeable cross-reference
interchangeable
11404Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 55181?
55181 is a CAPACITOR,FIXED,CERAMIC DIELECTR manufactured by Mobiparts. It is classified as a MRO (MRO_GENERAL).
What parts can replace 55181?
There are 27 known substitutes for 55181: 5129737, 55181, 802788 and 24 more. Substitute compatibility should be verified for your specific system.
Is 55181 still available?
55181 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