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550459 — CONE AND ROLLERS,TAPERED ROLLER

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

550459: CONE AND ROLLERS,TAPERED ROLLER.

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 U.S.

Government catalog 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
NIINs: 009976187, 012757876, 015480186
FSC: 3110 — Bearings, Antifriction, Unmounted
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
•
STYLE DESIGNATOR: NORMAL ANGLE
•
OUTSIDE DIAMETER: 2.5312 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.0620 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
MATERIAL: STEEL OVERALL
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
STYLE DESIGNATORNORMAL ANGLE
OVERALL WIDTH0.6563 INCHES NOMINAL IN
OUTSIDE DIAMETER2.5312 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.0620 INCHES NOMINAL IN
SPECIAL FEATURESDUTY CLASS M SERIES
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 8
209MDWReference document
Same NSN cross-reference
Reference document — Secondary reference
M86610Reference document
Same NSN cross-reference
Reference document — Secondary reference
4923LReference document
Same NSN cross-reference
Reference document — Secondary reference
200233ZReference document
Same NSN cross-reference
Reference document — Secondary reference
156194Reference document
Same NSN cross-reference
Reference document — Secondary reference
3156062Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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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 8 known substitutes for 550459: 209MDW, M86610, 4923L and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 550459?
550459 is cataloged in the U.S. Government catalog under NSN 3110-00-997-6187. 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.