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294521 ✓ 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,METALLIZED,PAPER. Key specifications include body_width: 3.062 INCHES NOMINAL IN, body_height: 4.875 INCHES NOMINAL IN, body_length: 3.562 INCHES NOMINAL IN, inclosure_type: HERMETICALLY SEALED, mounting_method: THREADED STUD(S) SINGLE GROUP, frequency_rating: 47.0 HERTZ MINIMUM AND 63.0 HERTZ MAXIMUM SINGLE COMPONENT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3040-00-109-6507, 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
294521
NSN: 3040-00-109-6507
FSC: 3040
CAGE: 62983 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
body_width3.062 INCHES NOMINAL IN
body_height4.875 INCHES NOMINAL IN
body_length3.562 INCHES NOMINAL IN
inclosure_typeHERMETICALLY SEALED
mounting_methodTHREADED STUD(S) SINGLE GROUP
frequency_rating47.0 HERTZ MINIMUM AND 63.0 HERTZ MAXIMUM SINGLE COMPONENT
nominal_thread_size0.164 INCHES SINGLE GROUP IN
reliability_indicatorNOT ESTABLISHED
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
winding_operating_current20.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
winding_operating_voltage3.45 AC KILOVOLTS NOMINAL SINGLE COMPONENT FOURTH SECONDARY
mounting_facility_quantity4 SINGLE GROUP
NSN3040-00-109-6507
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,METALLIZED,PAPER TITLE COMPONENT PN 294521 MFR CAPACITOR,FIXED,METALL
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 7
321262Interchangeable
interchangeable cross-reference
interchangeable
QB91695-1Interchangeable
interchangeable cross-reference
interchangeable
364B105JInterchangeable
interchangeable cross-reference
interchangeable
2945-21Interchangeable
interchangeable cross-reference
interchangeable
37038Interchangeable
interchangeable cross-reference
interchangeable
1LUMZ100Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 294521?
294521 is a CAPACITOR,FIXED,METALLIZED,PAPER.
What parts can replace 294521?
There are 7 known substitutes for 294521: 321262, QB91695-1, 364B105J and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 294521?
294521 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3040-00-109-6507. 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