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Technical Data Sheet
PartsTable / COMPONENT / ONION
ONION ✓ 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

RESISTOR,VARIABLE,NONWIRE WOUND,. Key specifications include material: STEEL OVERALL, alignment_type: RIGID, overall_height: 2.5000 INCHES NOMINAL IN, surface_finish: GROUND, special_features: RETAINERLESS TYPE, style_designator: GROOVED RACE SURFACE, BANDED OD. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-8559, 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
ONION
NSN: 3110-00-100-8559
FSC: 3110
CAGE: 21335 — TIMKEN CO DIV THE TIMKEN COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
alignment_typeRIGID
overall_height2.5000 INCHES NOMINAL IN
surface_finishGROUND
special_featuresRETAINERLESS TYPE
style_designatorGROOVED RACE SURFACE, BANDED OD
bore_smallest_diameter0.8125 INCHES NOMINAL IN
overall_outside_diameter3.9687 INCHES NOMINAL IN
standard_tolerance_designationABEC NO.1
thrust_directional_capability_designationSINGLE
NSN3110-00-100-8559
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: ONION · 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
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
THRUST DIRECTIONAL CAPABILITY DESIGNATION: SINGLE
•
ALIGNMENT TYPE: RIGID
•
SURFACE FINISH: GROUND
•
OVERALL OUTSIDE DIAMETER: 3.9687 INCHES NOMINAL IN
•
BORE SMALLEST DIAMETER: 0.8125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT2.5000 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONABEC NO.1
SPECIAL FEATURESRETAINERLESS TYPE
THRUST DIRECTIONAL CAPABILITY DESIGNATIONSINGLE
ALIGNMENT TYPERIGID
SURFACE FINISHGROUND
OVERALL OUTSIDE DIAMETER3.9687 INCHES NOMINAL IN
BORE SMALLEST DIAMETER0.8125 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
STYLE DESIGNATORGROOVED RACE SURFACE, BANDED OD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
D33Interchangeable
interchangeable cross-reference
interchangeable
575A1-9Interchangeable
interchangeable cross-reference
interchangeable
E33Interchangeable
interchangeable cross-reference
interchangeable
BA004-521Interchangeable
interchangeable cross-reference
interchangeable
D2334 PC41 1INInterchangeable
interchangeable cross-reference
interchangeable
A2333Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ONION?
ONION is a RESISTOR,VARIABLE,NONWIRE WOUND,.
What parts can replace ONION?
There are 12 known substitutes for ONION: D33, 575A1-9, E33 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ONION?
ONION is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-8559. 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