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Technical Data Sheet
PartsTable / COMPONENT / 550459
550459 ✓ 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, body_width: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, body_length: 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN, overall_width: 0.6563 INCHES NOMINAL IN, outside_diameter: 2.5312 INCHES NOMINAL IN, special_features: DUTY CLASS M SERIES. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-997-6187, 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
550459
NSN: 3110-00-997-6187
FSC: 3110
CAGE: 72447 — DANA COMMERCIAL VEHICLE MANUFACTURING, LLC DBA DANA COMMERCIAL VEHICLE PRODUCTS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_width0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
body_length0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
overall_width0.6563 INCHES NOMINAL IN
outside_diameter2.5312 INCHES NOMINAL IN
special_featuresDUTY CLASS M SERIES
style_designatorNORMAL ANGLE
inclosure_materialPLASTIC
operating_temp_range-40.0 TO 85.0 CELSIUS DEGC
backface_corner_radius0.0620 INCHES NOMINAL IN
end_item_identificationNHA 63E60
inclosure_configurationDUAL-IN-LINE
NSN3110-00-997-6187
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 550459 · 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
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: NORMAL ANGLE
•
BACKFACE CORNER RADIUS: 0.0620 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
OUTSIDE DIAMETER: 2.5312 INCHES NOMINAL IN
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)
MATERIALSTEEL OVERALL
STYLE DESIGNATORNORMAL ANGLE
BACKFACE CORNER RADIUS0.0620 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
OUTSIDE DIAMETER2.5312 INCHES NOMINAL IN
OVERALL WIDTH0.6563 INCHES NOMINAL IN
SPECIAL FEATURESDUTY CLASS M SERIES
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
73570Interchangeable
interchangeable cross-reference
interchangeable
40-31048-9Interchangeable
interchangeable cross-reference
interchangeable
2007-1Interchangeable
interchangeable cross-reference
interchangeable
C2076-1Interchangeable
interchangeable cross-reference
interchangeable
54813GKIInterchangeable
interchangeable cross-reference
interchangeable
12000531Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 550459?
550459 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace 550459?
There are 20 known substitutes for 550459: 73570, 40-31048-9, 2007-1 and 17 more. Substitute compatibility should be verified for your specific system.
Is 550459 still available?
550459 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: July 2026