PartsTable
Technical Data Sheet
PartsTable / MRO / FN866
FN866 ✓ 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

CAPACITOR,FIXED,PAPER DIELECTRIC. Key specifications include body_width: 1.015 INCHES MAXIMUM IN, body_height: 1.047 INCHES MAXIMUM IN, body_length: 2.370 INCHES NOMINAL IN, inclosure_type: HERMETICALLY SEALED, overall_height: 1.422 INCHES MAXIMUM IN, style_designator: RECTANGULAR TERMINAL/TERMINALS ON ONE SURFACE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5915-00-595-7937, 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→ FN866
NSN: 5915-00-595-7937
FSC: 5915
CAGE: 53733 — FILTRONETICS, INC. DBA FILTRONETICS INC (USA)
SPECIFICATIONS
body_width1.015 INCHES MAXIMUM IN
body_height1.047 INCHES MAXIMUM IN
body_length2.370 INCHES NOMINAL IN
inclosure_typeHERMETICALLY SEALED
overall_height1.422 INCHES MAXIMUM IN
style_designatorRECTANGULAR TERMINAL/TERMINALS ON ONE SURFACE
nominal_thread_size0.112 INCHES IN
operating_temp_range-30.0 TO 85.0 CELSIUS DEGC
end_item_identificationAN/GRC-171A (V) A
load_impedance_per_function4.0 KILOHMS BLANK LOCATION NOT OTHERWISE SPECIFIED
average_life_rating_in_hours10000.0
reference_frequency_per_function10.7 MEGAHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED
NSN5915-00-595-7937
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,PAPER DIELECTRIC TITLE COMPONENT PN FN866 MFR CAPACITOR,FIXED,PAPER
KEY FEATURES
•
VIBRATION RESISTANCE RANGE IN HERTZ: +10.0 TO 2000.0
•
BODY HEIGHT: 1.047 INCHES MAXIMUM IN
•
AVERAGE LIFE RATING IN HOURS: 10000.0
•
SOURCE IMPEDANCE RATING PER FUNCTION: 4.0 KILOHMS BLANK LOCATION NOT OTHERWISE SPECIFIED
•
FUNCTIONAL TERMINAL TYPE AND QUANTITY: 1 PIN GROUND THIRD FUNCTION
•
REFERENCE FREQUENCY PER FUNCTION: 10.7 MEGAHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED
•
BODY LENGTH: 2.370 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)
VIBRATION RESISTANCE RANGE IN HERTZ+10.0 TO 2000.0
BODY HEIGHT1.047 INCHES MAXIMUM IN
AVERAGE LIFE RATING IN HOURS10000.0
SOURCE IMPEDANCE RATING PER FUNCTION4.0 KILOHMS BLANK LOCATION NOT OTHERWISE SPECIFIED
FUNCTIONAL TERMINAL TYPE AND QUANTITY1 PIN GROUND THIRD FUNCTION
REFERENCE FREQUENCY PER FUNCTION10.7 MEGAHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED
FUNCTIONAL TERMINAL TYPE AND QUANTITY1 PIN OUTPUT SECOND FUNCTION
BODY LENGTH2.370 INCHES NOMINAL IN
LOAD IMPEDANCE PER FUNCTION4.0 KILOHMS BLANK LOCATION NOT OTHERWISE SPECIFIED
OVERALL HEIGHT1.422 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
135X25Interchangeable
interchangeable cross-reference
interchangeable
187201Interchangeable
interchangeable cross-reference
interchangeable
56430Interchangeable
interchangeable cross-reference
interchangeable
D29778-261Interchangeable
interchangeable cross-reference
interchangeable
3307511Interchangeable
interchangeable cross-reference
interchangeable
750-9Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FN866?
FN866 is a CAPACITOR,FIXED,PAPER DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace FN866?
There are 28 known substitutes for FN866: 135X25, 187201, 56430 and 25 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FN866?
FN866 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5915-00-595-7937. 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