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Technical Data Sheet
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MS-403 ✓ 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

CAPACITOR,FIXED,CERAMIC DIELECTR. Key specifications include color: GRAY/GREY AND YELLOW, material: SILICONE, curing_method: AIR DRIED, physical_form: PASTE AND LIQUID, special_features: PART A IS A BROWNISH GRAY PASTE, PART B IS A TRANSLUCENT YELLOW, features_provided: SEPARATE CATALYST AND DYE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2825-00-498-4197, 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
MS-403
NSN: 2825-00-498-4197
FSC: 2825
CAGE: 16712 — SIEMENS ENERGY, INC. (USA)
SPECIFICATIONS
colorGRAY/GREY AND YELLOW
materialSILICONE
curing_methodAIR DRIED
physical_formPASTE AND LIQUID
special_featuresPART A IS A BROWNISH GRAY PASTE, PART B IS A TRANSLUCENT YELLOW
features_providedSEPARATE CATALYST AND DYE
minimum_flash_point95.0 DEG CELSIUS
specific_usage_designCONDUCTIVE FILLET SEALING AND FAY SURFACE SEALING
end_item_identificationB-2B ACFT
part_name_assigned_by_controlling_agencySILICONE CAULK; CONDUCTIVE SILICONE SEALANT/CAULK
NSN2825-00-498-4197
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,CERAMIC DIELECTR TITLE COMPONENT PN MS-403 MFR CAPACITOR,FIXED,CERAMI
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 13
45059Interchangeable
interchangeable cross-reference
interchangeable
305-11Interchangeable
interchangeable cross-reference
interchangeable
C45059Interchangeable
interchangeable cross-reference
interchangeable
LST-9843-10 PART BInterchangeable
interchangeable cross-reference
interchangeable
MS-403BInterchangeable
interchangeable cross-reference
interchangeable
LST-9843-10, A, R02634,BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS-403?
MS-403 is a CAPACITOR,FIXED,CERAMIC DIELECTR.
What parts can replace MS-403?
There are 13 known substitutes for MS-403: 45059, 305-11, C45059 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS-403?
MS-403 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2825-00-498-4197. 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: July 2026