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1MA51 ✓ 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 width: 0.750 INCHES NOMINAL IN, diameter: 6.562 INCHES NOMINAL IN, material: STEEL OVERALL, blade_quantity: 16, style_designator: STRAIGHT RADIAL W/ BACK PLATE, attachment_method: KEYWAY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4140-00-060-0020, 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
1MA51
NSN: 4140-00-060-0020
FSC: 4140
CAGE: 45152 — OSHKOSH CORP (USA)
SPECIFICATIONS
width0.750 INCHES NOMINAL IN
diameter6.562 INCHES NOMINAL IN
materialSTEEL OVERALL
blade_quantity16
style_designatorSTRAIGHT RADIAL W/ BACK PLATE
attachment_methodKEYWAY
rotation_direction_for_which_designedCLOCKWISE
NSN4140-00-060-0020
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available IMPELLER,FAN,CENTRIFUGAL TITLE COMPONENT PN 1MA51 MFR IMPELLER,FAN,CENTRIFUG
KEY FEATURES
•
ATTACHMENT METHOD: KEYWAY
•
ROTATION DIRECTION FOR WHICH DESIGNED: CLOCKWISE
•
BLADE QUANTITY: 16
•
WIDTH: 0.750 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT RADIAL W/ BACK PLATE
•
MATERIAL: STEEL OVERALL
•
DIAMETER: 6.562 INCHES NOMINAL IN
TYPICAL APPLICATIONS
  • Server thermal management and cooling
  • Hot-swap fan replacement in production environments
  • Redundant cooling for high-availability systems
TECHNICAL CHARACTERISTICS (FLIS)
ATTACHMENT METHODKEYWAY
ROTATION DIRECTION FOR WHICH DESIGNEDCLOCKWISE
BLADE QUANTITY16
WIDTH0.750 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT RADIAL W/ BACK PLATE
MATERIALSTEEL OVERALL
DIAMETER6.562 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
10797Interchangeable
interchangeable cross-reference
interchangeable
23854Interchangeable
interchangeable cross-reference
interchangeable
LS249AInterchangeable
interchangeable cross-reference
interchangeable
K6SInterchangeable
interchangeable cross-reference
interchangeable
861Interchangeable
interchangeable cross-reference
interchangeable
CDD3525-18Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1MA51?
1MA51 is a IMPELLER,FAN,CENTRIFUGAL.
What parts can replace 1MA51?
There are 13 known substitutes for 1MA51: 10797, 23854, LS249A and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1MA51?
1MA51 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4140-00-060-0020. 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