PartsTable
Technical Data Sheet
18557-1MFD ✓ Verified by PartsTable
· 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

The CAPACITOR 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 color: BROWN FIRST POSITION COVER SINGLE CONDUCTOR, material: STEEL INNER RING, bore_shape: STRAIGHT, temp_rating: 105.0 CELSIUS DEGC, bore_diameter: 6.7500 INCHES NOMINAL IN, overall_width: 0.6250 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 5910-00-945-4270, 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 18557-1MFD
NSN: 5910-00-945-4270
FSC: 5910
CAGE: K3861 — THALES SECURITY SYSTEMS UK LIMITED (GBR)
SPECIFICATIONS
colorBROWN FIRST POSITION COVER SINGLE CONDUCTOR
materialSTEEL INNER RING
bore_shapeSTRAIGHT
temp_rating105.0 CELSIUS DEGC
bore_diameter6.7500 INCHES NOMINAL IN
overall_width0.6250 INCHES NOMINAL IN
conductor_formSTRANDED SINGLE CONDUCTOR
load_directionRADIAL
surface_finishGROUND
voltage_rating600.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE SINGLE CONDUCTOR
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
surface_treatmentTIN CORE CONDUCTOR SINGLE CONDUCTOR
NSN5910-00-945-4270
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR TITLE COMPONENT PN 18557-1MFD MFR CAPACITOR
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
X03362Interchangeable
interchangeable cross-reference
interchangeable
179859Interchangeable
interchangeable cross-reference
interchangeable
18557Interchangeable
interchangeable cross-reference
interchangeable
04-018-05-05-1-03-4-401AInterchangeable
interchangeable cross-reference
interchangeable
257831-F4Interchangeable
interchangeable cross-reference
interchangeable
122677-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 18557-1MFD?
18557-1MFD is a CAPACITOR. It is classified as a MRO (MRO_GENERAL).
What parts can replace 18557-1MFD?
There are 11 known substitutes for 18557-1MFD: X03362, 179859, 18557 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 18557-1MFD?
18557-1MFD is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-945-4270. This indicates validated use in U.S. government and defense supply chains.
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