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B-43991 — RETAINER,CAPACITOR

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

B-43991: RETAINER,CAPACITOR.

The RETAINER,CAPACITOR is a the manufacturer cache protection component designed to preserve data integrity during power loss events in enterprise server and storage controller environments. Key specifications include material: STEEL CORROSION RESISTING, inside_length: 6.125 INCHES NOMINAL IN, overall_width: 2.000 INCHES NOMINAL IN, overall_height: 3.688 INCHES NOMINAL IN, overall_length: 7.250 INCHES NOMINAL IN, style_designator: FLAT STRAP FOOTED HOLE MOUNTING. This part is cataloged in the U.S.

Government catalog under NSN 5910-01-212-5769, 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→ B-43991
NSN: 5910-01-212-5769
NIINs: 012125769, 012194670
FSC: 5910 — Capacitors
CAGE: 07860 — BOGUE ELECTRIC MANUFACTURING CO (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
inside_length6.125 INCHES NOMINAL IN
overall_width2.000 INCHES NOMINAL IN
overall_height3.688 INCHES NOMINAL IN
overall_length7.250 INCHES NOMINAL IN
style_designatorFLAT STRAP FOOTED HOLE MOUNTING
end_item_identificationPUMP PARTS,SHIP PROVISIONING
unthreaded_mounting_hole_diameterUNABLE TO DECODE
mounting_facility_type_and_quantityUNABLE TO DECODE
accommodated_item_securing_device_typeHOLES
distance_between_mounting_facility_centersUNABLE TO DECODE
distance_from_mounting_surface_to_retaining_surface3.629 INCHES NOMINAL IN
NSN5910-01-212-5769
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RETAINER,CAPACITOR TITLE COMPONENT PN B-43991 MFR RETAINER,CAPACITOR
KEY FEATURES
•
MOUNTING FACILITY TYPE AND QUANTITY: UNABLE TO DECODE
•
INSIDE LENGTH: 6.125 INCHES NOMINAL IN
•
UNTHREADED MOUNTING HOLE DIAMETER: UNABLE TO DECODE
•
STYLE DESIGNATOR: FLAT STRAP FOOTED HOLE MOUNTING
•
ACCOMMODATED ITEM SECURING DEVICE TYPE: HOLES
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
MOUNTING FACILITY TYPE AND QUANTITYUNABLE TO DECODE
OVERALL HEIGHT3.688 INCHES NOMINAL IN
INSIDE LENGTH6.125 INCHES NOMINAL IN
UNTHREADED MOUNTING HOLE DIAMETERUNABLE TO DECODE
STYLE DESIGNATORFLAT STRAP FOOTED HOLE MOUNTING
OVERALL LENGTH7.250 INCHES NOMINAL IN
ACCOMMODATED ITEM SECURING DEVICE TYPEHOLES
OVERALL WIDTH2.000 INCHES NOMINAL IN
DISTANCE BETWEEN MOUNTING FACILITY CENTERSUNABLE TO DECODE
MATERIALSTEEL CORROSION RESISTING
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B-43991?
B-43991 is a RETAINER,CAPACITOR. It is classified as a MRO (MRO_GENERAL).
What is the NSN for B-43991?
B-43991 is cataloged in the U.S. Government catalog under NSN 5910-01-212-5769. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.