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Technical Data Sheet
PartsTable / MRO / F-591
F-591 ✓ 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_style: STRAIGHT SHAPE, INTERNAL COUPLING, shell_type: SOLID, body_length: 1.438 INCHES NOMINAL IN, thread_class: 2B, body_diameter: 0.680 INCHES NOMINAL IN, terminal_type: CRIMP SINGLE MATING END SINGLE CONTACT GROUPING. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-448-2660, 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→ F-591
NSN: 5910-00-448-2660
FSC: 5910
CAGE: 87502 — WELLS MFG CORP SUB OF UIS INC (USA)
SPECIFICATIONS
body_styleSTRAIGHT SHAPE, INTERNAL COUPLING
shell_typeSOLID
body_length1.438 INCHES NOMINAL IN
thread_class2B
body_diameter0.680 INCHES NOMINAL IN
terminal_typeCRIMP SINGLE MATING END SINGLE CONTACT GROUPING
overall_length0.687 INCHES NOMINAL IN
terminal_length2.500 INCHES NOMINAL IN
overall_diameter0.437 INCHES NOMINAL IN
thread_directionRIGHT-HAND
terminal_locationBACK SINGLE MATING END SINGLE CONTACT GROUPING
mating_end_quantity1
NSN5910-00-448-2660
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,PAPER DIELECTRIC TITLE COMPONENT PN F-591 MFR CAPACITOR,FIXED,PAPER
KEY FEATURES
•
TERMINAL TYPE AND QUANTITY: 1 UNINSULATED WIRE LEAD
•
BODY STYLE: W/MTG BRACKET, AXIAL TERMINALS
•
TERMINAL LENGTH: 2.500 INCHES NOMINAL IN
•
MOUNTING FACILITY TYPE AND QUANTITY: 1 UNTHREADED MOUNTING HOLES
•
BODY LENGTH: 1.438 INCHES NOMINAL IN
•
SCHEMATIC DIAGRAM DESIGNATOR: ELECTRODE(S) GROUNDED TO CASE
•
BODY DIAMETER: 0.680 INCHES NOMINAL IN
•
UNTHREADED MOUNTING HOLE DIAMETER: 0.180 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)
TERMINAL TYPE AND QUANTITY1 UNINSULATED WIRE LEAD
BODY STYLEW/MTG BRACKET, AXIAL TERMINALS
TERMINAL LENGTH2.500 INCHES NOMINAL IN
MOUNTING FACILITY TYPE AND QUANTITY1 UNTHREADED MOUNTING HOLES
BODY LENGTH1.438 INCHES NOMINAL IN
SCHEMATIC DIAGRAM DESIGNATORELECTRODE(S) GROUNDED TO CASE
BODY DIAMETER0.680 INCHES NOMINAL IN
UNTHREADED MOUNTING HOLE DIAMETER0.180 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
B107.100Interchangeable
interchangeable cross-reference
interchangeable
B107.9Interchangeable
interchangeable cross-reference
interchangeable
GGG-W-636Interchangeable
interchangeable cross-reference
interchangeable
87772R1Interchangeable
interchangeable cross-reference
interchangeable
FD9039Interchangeable
interchangeable cross-reference
interchangeable
FD9039KInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is F-591?
F-591 is a CAPACITOR,FIXED,PAPER DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace F-591?
There are 23 known substitutes for F-591: B107.100, B107.9, GGG-W-636 and 20 more. Substitute compatibility should be verified for your specific system.
Is F-591 still available?
F-591 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