PartsTable
Technical Data Sheet
Download PDF

017-31150-81 — IMPELLER,FAN,CENTRIFUGAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

017-31150-81: 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 width: 4.000 INCHES NOMINAL IN, diameter: 31.000 INCHES NOMINAL IN, material: STEEL CORROSION RESISTING HOUSING, blade_quantity: 18, special_features: DESIGNED FOR CCW ROTATION DIRECTION; TWELVE 1/2 IN. DIA HOLES EQUALLY SPACED IN, style_designator: STRAIGHT BLADES SINGLE WIDTH.

This part is cataloged in the U.S. Government catalog under NSN 4140-01-192-2944, 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
017-31150-81
NSN: 4140-01-192-2944
FSC: 4140 — Fans, Air Circulators, and Blower Equipment
CAGE: 32770 — KATO ENGINEERING INC. (USA)
SPECIFICATIONS
width4.000 INCHES NOMINAL IN
diameter31.000 INCHES NOMINAL IN
materialSTEEL CORROSION RESISTING HOUSING
blade_quantity18
special_featuresDESIGNED FOR CCW ROTATION DIRECTION; TWELVE 1/2 IN. DIA HOLES EQUALLY SPACED IN
style_designatorSTRAIGHT BLADES SINGLE WIDTH
attachment_methodLOCKNUT
rotation_direction_for_which_designedCOUNTERCLOCKWISE
NSN4140-01-192-2944
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available IMPELLER,FAN,CENTRIFUGAL TITLE COMPONENT PN 017-31150-81 MFR IMPELLER,FAN,CENTRIFUG
KEY FEATURES
•
STYLE DESIGNATOR: STRAIGHT BLADES SINGLE WIDTH
•
ATTACHMENT METHOD: LOCKNUT
•
DIAMETER: 31.000 INCHES NOMINAL IN
•
BLADE QUANTITY: 18
•
WIDTH: 4.000 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM ALLOY BLADE
TYPICAL APPLICATIONS
  • Server thermal management and cooling
  • Hot-swap fan replacement in production environments
  • Redundant cooling for high-availability systems
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSTRAIGHT BLADES SINGLE WIDTH
ATTACHMENT METHODLOCKNUT
DIAMETER31.000 INCHES NOMINAL IN
BLADE QUANTITY18
SPECIAL FEATURESDESIGNED FOR CCW ROTATION DIRECTION; TWELVE 1/2 IN. DIA HOLES EQUALLY SPACED IN
WIDTH4.000 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY BLADE
MATERIALSTEEL CORROSION RESISTING HOUSING
ROTATION DIRECTION FOR WHICH DESIGNEDCOUNTERCLOCKWISE
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
Ready to buy 017-31150-81?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 017-31150-81?
017-31150-81 is a IMPELLER,FAN,CENTRIFUGAL.
What is the NSN for 017-31150-81?
017-31150-81 is cataloged in the U.S. Government catalog under NSN 4140-01-192-2944. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 017-31150-81

✓ 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.