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Technical Data Sheet
PartsTable / COMPONENT / 12C3-2B
12C3-2B ✓ 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

CORE ASSEMBLY,FLUID HEATER,INDUS. Key specifications include material: COPPER ALLOY CA122 TUBES, core_width: 3.750 INCHES NOMINAL IN, core_height: 24.876 INCHES NOMINAL IN, core_length: 19.125 INCHES NOMINAL IN, style_designator: FINNED "S" TUBE, heat_transfer_method: INDIRECT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4420-00-003-2812, 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
12C3-2B
NSN: 4420-00-003-2812
FSC: 4420
CAGE: 98437 — ELLIS & WATTS INTERNATIONAL, LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY CA122 TUBES
core_width3.750 INCHES NOMINAL IN
core_height24.876 INCHES NOMINAL IN
core_length19.125 INCHES NOMINAL IN
style_designatorFINNED "S" TUBE
heat_transfer_methodINDIRECT
NSN4420-00-003-2812
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CORE ASSEMBLY,FLUID HEATER,INDUS TITLE COMPONENT PN 12C3-2B MFR CORE ASSEMBLY,FLUID HE
KEY FEATURES
•
CORE WIDTH: 3.750 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FINNED "S" TUBE
•
CORE LENGTH: 19.125 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY CA122 TUBES
•
HEAT TRANSFER METHOD: INDIRECT
•
CORE HEIGHT: 24.876 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CORE WIDTH3.750 INCHES NOMINAL IN
STYLE DESIGNATORFINNED "S" TUBE
CORE LENGTH19.125 INCHES NOMINAL IN
MATERIALCOPPER ALLOY CA122 TUBES
HEAT TRANSFER METHODINDIRECT
CORE HEIGHT24.876 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES

No verified substitutes available.

LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12C3-2B?
12C3-2B is a CORE ASSEMBLY,FLUID HEATER,INDUS.
What is the NSN for 12C3-2B?
12C3-2B is cataloged in the Federal Logistics Information System (FLIS) under NSN 4420-00-003-2812. 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