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Technical Data Sheet
PartsTable / COMPONENT / K2578
K2578 ✓ Verified by PartsTable
— · TAPERED BEARING
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

CONE AND ROLLERS,TAPERED ROLLER. Key specifications include material: STEEL OVERALL, cone_width: 0.9983 INCHES NOMINAL IN, bore_diameter: 1.1250 INCHES NOMINAL IN, style_designator: NORMAL ANGLE, cone_corner_radius: 0.0938 INCHES NOMINAL IN, end_item_identification: M1117 ARMORED SECURITY VEHICLE (ASV). This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0727, 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
K2578
NSN: 3110-00-100-0727
FSC: 3110
CAGE: F0272 — SKF FRANCE (FRA)
SPECIFICATIONS
materialSTEEL OVERALL
cone_width0.9983 INCHES NOMINAL IN
bore_diameter1.1250 INCHES NOMINAL IN
style_designatorNORMAL ANGLE
cone_corner_radius0.0938 INCHES NOMINAL IN
end_item_identificationM1117 ARMORED SECURITY VEHICLE (ASV)
standard_tolerance_designationAFBMA CLASS 2
part_name_assigned_by_controlling_agencyKIT TORSON BAR,DRIVERS SIDE
NSN3110-00-100-0727
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: K2578 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CONE CORNER RADIUS: 0.0938 INCHES NOMINAL IN
•
CONE WIDTH: 0.9983 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NORMAL ANGLE
•
BORE DIAMETER: 1.1250 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
TECHNICAL CHARACTERISTICS (FLIS)
CONE CORNER RADIUS0.0938 INCHES NOMINAL IN
CONE WIDTH0.9983 INCHES NOMINAL IN
STYLE DESIGNATORNORMAL ANGLE
BORE DIAMETER1.1250 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
2940001419026Interchangeable
interchangeable cross-reference
interchangeable
83317CSInterchangeable
interchangeable cross-reference
interchangeable
C25Interchangeable
interchangeable cross-reference
interchangeable
2578Interchangeable
interchangeable cross-reference
interchangeable
4-02641-002Interchangeable
interchangeable cross-reference
interchangeable
10095445-101Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is K2578?
K2578 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace K2578?
There are 18 known substitutes for K2578: 2940001419026, 83317CS, C25 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for K2578?
K2578 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0727. 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