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Technical Data Sheet
PartsTable / COMPONENT / 255558
255558 ✓ 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 BALL,BEARING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, special_features: METALLIC HARDNESS RATING BRINELL STANDARD MIN 625.0 IN. AND MAX 700.0 IN.

IN, rolling_element_diameter: 0.3120 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-151-9140, 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
255558
NSN: 3110-00-151-9140
FSC: 3110
CAGE: 1PQF4 — CAE USA INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
special_featuresMETALLIC HARDNESS RATING BRINELL STANDARD MIN 625.0 IN. AND MAX 700.0 IN. IN
rolling_element_diameter0.3120 INCHES NOMINAL IN
NSN3110-00-151-9140
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 255558 · 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
•
ROLLING ELEMENT DIAMETER: 0.3120 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
ROLLING ELEMENT DIAMETER0.3120 INCHES NOMINAL IN
SPECIAL FEATURESMETALLIC HARDNESS RATING BRINELL STANDARD MIN 625.0 IN. AND MAX 700.0 IN. IN
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
T9161357PC10Interchangeable
interchangeable cross-reference
interchangeable
SF-276 5/16Interchangeable
interchangeable cross-reference
interchangeable
GPW3571Interchangeable
interchangeable cross-reference
interchangeable
32N802PC15Interchangeable
interchangeable cross-reference
interchangeable
BBS312Interchangeable
interchangeable cross-reference
interchangeable
K8468646Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 255558?
255558 is a BALL,BEARING.
What parts can replace 255558?
There are 29 known substitutes for 255558: T9161357PC10, SF-276 5/16, GPW3571 and 26 more. Substitute compatibility should be verified for your specific system.
Is 255558 still available?
255558 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