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PartsTable / COMPONENT / S1649
S1649 ✓ 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 IMPELLER,FAN,CENTRIFUGAL is a the manufacturer thermal management component critical for maintaining optimal operating temperatures in enterprise hardware. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL, peripheral_diameter: 1.750 INCHES NOMINAL IN, center_hole_diameter: 1.250 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4140-00-481-3858, 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
S1649
NSN: 4140-00-481-3858
FSC: 4140
CAGE: 03522 — ZERO CORP MCLEAN ENGINEERING DIV (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
peripheral_diameter1.750 INCHES NOMINAL IN
center_hole_diameter1.250 INCHES NOMINAL IN
cross-sectional_shape_styleU
NSN4140-00-481-3858
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available IMPELLER,FAN,CENTRIFUGAL TITLE COMPONENT PN S1649 MFR IMPELLER,FAN,CENTRIFUG
TYPICAL APPLICATIONS
  • Server thermal management and cooling
  • Hot-swap fan replacement in production environments
  • Redundant cooling for high-availability systems
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
S-1021Interchangeable
interchangeable cross-reference
interchangeable
AA300-128-1CW 5/16BORE/STEELInterchangeable
interchangeable cross-reference
interchangeable
M-1965Interchangeable
interchangeable cross-reference
interchangeable
S-1318Interchangeable
interchangeable cross-reference
interchangeable
AA408-228-1CW 5/16BORE/ALInterchangeable
interchangeable cross-reference
interchangeable
S-1359Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S1649?
S1649 is a IMPELLER,FAN,CENTRIFUGAL.
What parts can replace S1649?
There are 16 known substitutes for S1649: S-1021, AA300-128-1CW 5/16BORE/STEEL, M-1965 and 13 more. Substitute compatibility should be verified for your specific system.
Is S1649 still available?
S1649 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