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EP204 ✓ 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,VARIABLE,AIR DIELECTRI. Key specifications include material: PAPER FILTERING MEDIUM, design_type: NONREUSABLE, body_diameter: 3.093 INCHES NOMINAL IN, overall_width: 1.000 INCHES NOMINAL IN, terminal_type: WIRE LEAD, flow_direction: OUTSIDE IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2910-00-019-4618, 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
EP204
NSN: 2910-00-019-4618
FSC: 2910
CAGE: 19253 — PUROLATOR INC (USA)
SPECIFICATIONS
materialPAPER FILTERING MEDIUM
design_typeNONREUSABLE
body_diameter3.093 INCHES NOMINAL IN
overall_width1.000 INCHES NOMINAL IN
terminal_typeWIRE LEAD
flow_directionOUTSIDE IN
overall_height1.000 INCHES NOMINAL IN
overall_length2.100 INCHES NOMINAL IN
style_designatorCYLINDRICAL W/ CONTAINER (RIGID)
body_overall_length7.625 INCHES NOMINAL IN
body_inside_diameter0.750 INCHES NOMINAL IN
filtering_media_designPLEATED SINGLE FILTERING MEDIA RESPONSE
NSN2910-00-019-4618
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,VARIABLE,AIR DIELECTRI TITLE COMPONENT PN EP204 MFR CAPACITOR,VARIABLE,AIR
KEY FEATURES
•
MATERIAL: PAPER FILTERING MEDIUM
•
FLOW DIRECTION: OUTSIDE IN
•
DESIGN TYPE: NONREUSABLE
•
BODY OVERALL LENGTH: 7.625 INCHES NOMINAL IN
•
FILTERING MEDIA DESIGN: PLEATED SINGLE FILTERING MEDIA RESPONSE
•
STYLE DESIGNATOR: CYLINDRICAL W/ CONTAINER (RIGID)
•
MEDIA FOR WHICH DESIGNED: FUEL/OIL, HYDROCARBON
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)
MATERIALPAPER FILTERING MEDIUM
FLOW DIRECTIONOUTSIDE IN
DESIGN TYPENONREUSABLE
BODY OVERALL LENGTH7.625 INCHES NOMINAL IN
FILTERING MEDIA DESIGNPLEATED SINGLE FILTERING MEDIA RESPONSE
MATERIALMETAL CONTAINER/CARTRIDGE
STYLE DESIGNATORCYLINDRICAL W/ CONTAINER (RIGID)
MEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON
BODY DIAMETER3.093 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
31-3-3Interchangeable
interchangeable cross-reference
interchangeable
3233Interchangeable
interchangeable cross-reference
interchangeable
R9-1665-1BInterchangeable
interchangeable cross-reference
interchangeable
597Interchangeable
interchangeable cross-reference
interchangeable
6204ASPEC3133Interchangeable
interchangeable cross-reference
interchangeable
2030607Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is EP204?
EP204 is a CAPACITOR,VARIABLE,AIR DIELECTRI.
What parts can replace EP204?
There are 21 known substitutes for EP204: 31-3-3, 3233, R9-1665-1B and 18 more. Substitute compatibility should be verified for your specific system.
Is EP204 still available?
EP204 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