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280939C1 — Technical Data Sheet

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— · 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 DISK,CLUTCH,VEHICULAR is a the manufacturer industrial component. Key specifications include disk_type: INTERNAL LUG, design_type: DRY, flexibility: RIGID, disk_material: STEEL, spline_major_diameter: 4.875 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System under NSN 2520-00-213-0970, 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
280939C1
NSN: 2520-00-213-0970
FSC: 2520
CAGE: 92679 — NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION /MELROSE PARK/ (USA)
SPECIFICATIONS
disk_typeINTERNAL LUG
design_typeDRY
flexibilityRIGID
disk_materialSTEEL
spline_major_diameter4.875 INCHES NOMINAL IN
NSN2520-00-213-0970
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available DISK,CLUTCH,VEHICULAR TITLE COMPONENT PN 280939C1 MFR DISK,CLUTCH,VEHICULAR
KEY FEATURES
•
SPLINE MAJOR DIAMETER: 4.875 INCHES NOMINAL IN
•
DISK TYPE: INTERNAL LUG
•
DISK MATERIAL: STEEL
•
DESIGN TYPE: DRY
•
FLEXIBILITY: RIGID
TECHNICAL CHARACTERISTICS
SPLINE MAJOR DIAMETER4.875 INCHES NOMINAL IN
DISK TYPEINTERNAL LUG
DISK MATERIALSTEEL
DESIGN TYPEDRY
FLEXIBILITYRIGID
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
DD471InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
C325InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
5209-791InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
C376InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
400018InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
51038FInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 280939C1?
280939C1 is a DISK,CLUTCH,VEHICULAR.
What parts can replace 280939C1?
There are 8 known substitutes for 280939C1: DD471, C325, 5209-791 and 5 more. Substitute compatibility should be verified for your specific system.
Is 280939C1 still available?
280939C1 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: October 2026