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3012985 — IMPELLER,FAN,CENTRIFUGAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

3012985: IMPELLER,FAN,CENTRIFUGAL.

The IMPELLER,FAN,CENTRIFUGAL is a the manufacturer thermal management component critical for maintaining optimal operating temperatures in enterprise hardware. Key specifications include diameter: 5.476 INCHES NOMINAL IN, blade_quantity: 33, style_designator: CURVED BLADES SINGLE WIDTH, mounting_hole_diameter: 0.500 INCHES NOMINAL IN, part_name_assigned_by_controlling_agency: WHEEL. This part is cataloged in the U.S.

Government catalog under NSN 4140-01-727-4405, 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
3012985
NSN: 4140-01-727-4405
FSC: 4140 — Fans, Air Circulators, and Blower Equipment
CAGE: 6R9A4 — RIELLO CORPORATION OF AMERICA (USA)
SPECIFICATIONS
diameter5.476 INCHES NOMINAL IN
blade_quantity33
style_designatorCURVED BLADES SINGLE WIDTH
mounting_hole_diameter0.500 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyWHEEL
NSN4140-01-727-4405
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available IMPELLER,FAN,CENTRIFUGAL TITLE COMPONENT PN 3012985 MFR IMPELLER,FAN,CENTRIFUG
KEY FEATURES
•
STYLE DESIGNATOR: CURVED BLADES SINGLE WIDTH
•
MOUNTING HOLE DIAMETER: 0.500 INCHES NOMINAL IN
•
DIAMETER: 5.476 INCHES NOMINAL IN
•
BLADE QUANTITY: 33
TYPICAL APPLICATIONS
  • Server thermal management and cooling
  • Hot-swap fan replacement in production environments
  • Redundant cooling for high-availability systems
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORCURVED BLADES SINGLE WIDTH
MOUNTING HOLE DIAMETER0.500 INCHES NOMINAL IN
DIAMETER5.476 INCHES NOMINAL IN
BLADE QUANTITY33
PART NAME ASSIGNED BY CONTROLLING AGENCYWHEEL
OTHER ITEMS IN FSC 4140 — Fans, Air Circulators, and Blower Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4140-00-000-0082 4140-00-001-1517 4140-00-001-1536 4140-00-001-1537 4140-00-001-3930 4140-00-001-6464 4140-00-001-6874 4140-00-001-6875
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3012985?
3012985 is a IMPELLER,FAN,CENTRIFUGAL.
What is the NSN for 3012985?
3012985 is cataloged in the U.S. Government catalog under NSN 4140-01-727-4405. 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.