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BC4-SG ✓ 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

The CAPACITOR,FIXED,ELECTROLYTIC 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 head_weight: 4.000 POUNDS LBS, overall_length: 14.000 INCHES NOMINAL IN, handle_material: GLASS FIBER, special_features: STEPPED CUSHION GRIP, style_designator: SLEDGE, BLACKSMITH'S, CROSS-PEEN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-01-395-7166, 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
BC4-SG
NSN: 5120-01-395-7166
FSC: 5120
CAGE: 76732 — NUPLA CORPORATION (USA)
SPECIFICATIONS
head_weight4.000 POUNDS LBS
overall_length14.000 INCHES NOMINAL IN
handle_materialGLASS FIBER
special_featuresSTEPPED CUSHION GRIP
style_designatorSLEDGE, BLACKSMITH'S, CROSS-PEEN
NSN5120-01-395-7166
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,ELECTROLYTIC TITLE COMPONENT PN BC4-SG MFR CAPACITOR,FIXED,ELECTR
KEY FEATURES
•
HEAD WEIGHT: 4.000 POUNDS LBS
•
STYLE DESIGNATOR: SLEDGE, BLACKSMITH'S, CROSS-PEEN
•
HANDLE MATERIAL: GLASS FIBER
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)
HEAD WEIGHT4.000 POUNDS LBS
STYLE DESIGNATORSLEDGE, BLACKSMITH'S, CROSS-PEEN
HANDLE MATERIALGLASS FIBER
OVERALL LENGTH14.000 INCHES NOMINAL IN
SPECIAL FEATURESSTEPPED CUSHION GRIP
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
HAT45AInterchangeable
interchangeable cross-reference
interchangeable
162D045Interchangeable
interchangeable cross-reference
interchangeable
29-045Interchangeable
interchangeable cross-reference
interchangeable
BM29045Interchangeable
interchangeable cross-reference
interchangeable
438-5Interchangeable
interchangeable cross-reference
interchangeable
438-5 GREENLEEInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BC4-SG?
BC4-SG is a CAPACITOR,FIXED,ELECTROLYTIC.
What parts can replace BC4-SG?
There are 6 known substitutes for BC4-SG: HAT45A, 162D045, 29-045 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BC4-SG?
BC4-SG is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-01-395-7166. 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