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PartsTable / COMPONENT / W209KLLFS381A
W209KLLFS381A ✓ 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

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL BALL, bore_shape: STRAIGHT, bore_diameter: 45.00 MILLIMETERS NOMINAL MM, overall_width: 30.1630 MILLIMETERS NOMINAL MM, load_direction: RADIAL, surface_finish: GROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-158-8257, 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
W209KLLFS381A
NSN: 3110-00-158-8257
FSC: 3110
CAGE: 21335 — TIMKEN CO DIV THE TIMKEN COMPANY (USA)
SPECIFICATIONS
materialSTEEL BALL
bore_shapeSTRAIGHT
bore_diameter45.00 MILLIMETERS NOMINAL MM
overall_width30.1630 MILLIMETERS NOMINAL MM
seal_quantity2
load_directionRADIAL
surface_finishGROUND
style_designatorNON-LOADING GROOVE, NON-SEPARABLE CARTRIDGE TYPE
bearing_seal_typeLABYRINTH
lubrication_materialGREASE
overall_outside_diameter85.00 MILLIMETERS NOMINAL MM
internal_fit-up_designationSTANDARD
NSN3110-00-158-8257
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: W209KLLFS381A · 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
•
OVERALL OUTSIDE DIAMETER: 85.00 MILLIMETERS NOMINAL MM
•
SURFACE FINISH: GROUND
•
RETAINER FABRICATION METHOD: PRESSED
•
BEARING SEAL TYPE: LABYRINTH
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
LOAD DIRECTION: RADIAL
•
SEAL QUANTITY: 2
•
LUBRICATION MATERIAL: GREASE
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL OUTSIDE DIAMETER85.00 MILLIMETERS NOMINAL MM
SURFACE FINISHGROUND
RETAINER FABRICATION METHODPRESSED
BEARING SEAL TYPELABYRINTH
INTERNAL FIT-UP DESIGNATIONSTANDARD
LOAD DIRECTIONRADIAL
SEAL QUANTITY2
LUBRICATION MATERIALGREASE
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONDOD-G-24508 MIL SPEC SINGLE MATERIAL RESPONSE
STANDARD TOLERANCE DESIGNATIONABEC NO.1
VERIFIED SUBSTITUTES & CROSS-REFERENCES 33
21-630Interchangeable
interchangeable cross-reference
interchangeable
FF-B-171/09J03B2AInterchangeable
interchangeable cross-reference
interchangeable
A-A-59595Interchangeable
interchangeable cross-reference
interchangeable
45C39Interchangeable
interchangeable cross-reference
interchangeable
302M0114P001Interchangeable
interchangeable cross-reference
interchangeable
A-A-59595-806JEBEInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is W209KLLFS381A?
W209KLLFS381A is a BEARING,BALL,ANNULAR.
What parts can replace W209KLLFS381A?
There are 33 known substitutes for W209KLLFS381A: 21-630, FF-B-171/09J03B2A, A-A-59595 and 30 more. Substitute compatibility should be verified for your specific system.
What is the NSN for W209KLLFS381A?
W209KLLFS381A is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-158-8257. 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