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256351R91 — IMPELLER,FAN,AXIAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

256351R91: IMPELLER,FAN,AXIAL.

The IMPELLER,FAN,AXIAL is a the manufacturer thermal management component critical for maintaining optimal operating temperatures in enterprise hardware. Key specifications include diameter: 20.000 INCHES NOMINAL IN, material: STEEL BLADE, style_designator: ROUNDED TIP, attachment_method: BOLT HOLE. This part is cataloged in the U.S.

Government catalog under NSN 2930-00-424-7235, 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
256351R91
NSN: 2930-00-424-7235
FSC: 2930 — Engine Cooling System Components, Nonaircraft
CAGE: 0SAT8 — KOMATSU AMERICA CORP. (USA)
SPECIFICATIONS
diameter20.000 INCHES NOMINAL IN
materialSTEEL BLADE
blade_quantity6
style_designatorROUNDED TIP
attachment_methodBOLT HOLE
NSN2930-00-424-7235
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available IMPELLER,FAN,AXIAL TITLE COMPONENT PN 256351R91 MFR IMPELLER,FAN,AXIAL
KEY FEATURES
•
STYLE DESIGNATOR: ROUNDED TIP
•
ATTACHMENT METHOD: BOLT HOLE
•
DIAMETER: 20.000 INCHES NOMINAL IN
•
BLADE QUANTITY: 6
•
MATERIAL: STEEL BLADE
TYPICAL APPLICATIONS
  • Server thermal management and cooling
  • Hot-swap fan replacement in production environments
  • Redundant cooling for high-availability systems
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORROUNDED TIP
ATTACHMENT METHODBOLT HOLE
DIAMETER20.000 INCHES NOMINAL IN
BLADE QUANTITY6
MATERIALSTEEL BLADE
OTHER ITEMS IN FSC 2930 — Engine Cooling System Components, Nonaircraft
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2930-00-000-3438 2930-00-001-3502 2930-00-001-6288 2930-00-001-6299 2930-00-001-6300 2930-00-001-6301 2930-00-001-6302 2930-00-001-7842
SUBSTITUTES & CROSS-REFERENCES 1
346780R91Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 256351R91?
256351R91 is a IMPELLER,FAN,AXIAL.
What parts can replace 256351R91?
There is 1 known substitute for 256351R91: 346780R91. Substitute compatibility should be verified for your specific system.
What is the NSN for 256351R91?
256351R91 is cataloged in the U.S. Government catalog under NSN 2930-00-424-7235. 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.