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Technical Data Sheet
PartsTable / COMPONENT / WIR305K
WIR305K ✓ 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: 25.00 MILLIMETERS NOMINAL MM, load_direction: RADIAL, surface_finish: GROUND, inner_ring_width: 1.0000 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-155-6840, 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
WIR305K
NSN: 3110-00-155-6840
FSC: 3110
CAGE: 21335 — TIMKEN CO DIV THE TIMKEN COMPANY (USA)
SPECIFICATIONS
materialSTEEL BALL
bore_shapeSTRAIGHT
bore_diameter25.00 MILLIMETERS NOMINAL MM
load_directionRADIAL
surface_finishGROUND
inner_ring_width1.0000 INCHES NOMINAL IN
outer_ring_width17.00 MILLIMETERS NOMINAL MM
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
overall_outside_diameter62.00 MILLIMETERS NOMINAL MM
internal_fit-up_designationSTANDARD
standard_tolerance_designationABEC NO.1
NSN3110-00-155-6840
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: WIR305K · 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
•
BORE SHAPE: STRAIGHT
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
MATERIAL: STEEL OUTER RING
•
OUTER RING WIDTH: 17.00 MILLIMETERS NOMINAL MM
•
BORE DIAMETER: 25.00 MILLIMETERS NOMINAL MM
•
OVERALL OUTSIDE DIAMETER: 62.00 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS (FLIS)
BORE SHAPESTRAIGHT
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
MATERIALSTEEL OUTER RING
MATERIALSTEEL BALL
MATERIALSTEEL INNER RING
OUTER RING WIDTH17.00 MILLIMETERS NOMINAL MM
BORE DIAMETER25.00 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER62.00 MILLIMETERS NOMINAL MM
INTERNAL FIT-UP DESIGNATIONSTANDARD
INNER RING WIDTH1.0000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
305WInterchangeable
interchangeable cross-reference
interchangeable
9097-051-330Interchangeable
interchangeable cross-reference
interchangeable
4605Interchangeable
interchangeable cross-reference
interchangeable
95J330Interchangeable
interchangeable cross-reference
interchangeable
P113-10Interchangeable
interchangeable cross-reference
interchangeable
CO-05HOF(5/16)0525Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is WIR305K?
WIR305K is a BEARING,BALL,ANNULAR.
What parts can replace WIR305K?
There are 15 known substitutes for WIR305K: 305W, 9097-051-330, 4605 and 12 more. Substitute compatibility should be verified for your specific system.
Is WIR305K still available?
WIR305K 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