PartsTable
Technical Data Sheet
PartsTable / MRO / BFB11
BFB11 ✓ 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,VARIABLE,AIR DIELECTRI. Key specifications include material: ALUMINUM BODY, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, body_style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE, shaft_type: ROUND, SLOTTED SINGLE SHAFT, body_length: 0.750 INCHES NOMINAL IN, flat_height: 0.210 INCHES NOMINAL SINGLE ACTUATOR IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5920-00-504-8634, 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→ BFB11
NSN: 5920-00-504-8634
FSC: 5920
CAGE: 37338 — NAUTEL LIMITED (CAN)
SPECIFICATIONS
materialALUMINUM BODY
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
body_styleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
shaft_typeROUND, SLOTTED SINGLE SHAFT
body_length0.750 INCHES NOMINAL IN
flat_height0.210 INCHES NOMINAL SINGLE ACTUATOR IN
flange_width0.281 INCHES NOMINAL IN
shaft_length0.250 INCHES NOMINAL SINGLE SHAFT IN
thread_class2A A
bushing_shapeROUND
overall_width0.500 INCHES NOMINAL IN
pole_quantity1 SINGLE SECTION FRONT
NSN5920-00-504-8634
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,VARIABLE,AIR DIELECTRI TITLE COMPONENT PN BFB11 MFR CAPACITOR,VARIABLE,AIR
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 33
1938-1Interchangeable
interchangeable cross-reference
interchangeable
FSF5036-250MAInterchangeable
interchangeable cross-reference
interchangeable
312-250Interchangeable
interchangeable cross-reference
interchangeable
0312.250MXPInterchangeable
interchangeable cross-reference
interchangeable
F3U219HInterchangeable
interchangeable cross-reference
interchangeable
F219Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BFB11?
BFB11 is a CAPACITOR,VARIABLE,AIR DIELECTRI. It is classified as a MRO (MRO_GENERAL).
What parts can replace BFB11?
There are 33 known substitutes for BFB11: 1938-1, FSF5036-250MA, 312-250 and 30 more. Substitute compatibility should be verified for your specific system.
Is BFB11 still available?
BFB11 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