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Technical Data Sheet
PartsTable / COMPONENT / S155A
S155A ✓ 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 special_features: POWER REQUIREMENTS 120VAC,60HZ,DIMENSIONS HEIGHT 26 IN.,WIDTH 22.25 IN.,DEPTH 22.25 IN. VAC.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-186-5017, 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
S155A
NSN: 3110-00-186-5017
FSC: 3110
CAGE: 83086 — NEW HAMPSHIRE BALL BEARINGS INC DIV HITECH DIVISION (USA)
SPECIFICATIONS
special_featuresPOWER REQUIREMENTS 120VAC,60HZ,DIMENSIONS HEIGHT 26 IN.,WIDTH 22.25 IN.,DEPTH 22.25 IN. VAC
NSN3110-00-186-5017
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: S155A · 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
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
STYLE DESIGNATOR: LOADING GROOVE, NON-SEPARABLE
•
SURFACE FINISH: GROUND
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.5
•
BORE SHAPE: STRAIGHT
•
OVERALL OUTSIDE DIAMETER: 0.3125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL FIT-UP DESIGNATIONSTANDARD
MATERIALSTEEL CORROSION RESISTING OVERALL
STYLE DESIGNATORLOADING GROOVE, NON-SEPARABLE
SURFACE FINISHGROUND
STANDARD TOLERANCE DESIGNATIONABEC NO.5
BORE SHAPESTRAIGHT
OVERALL OUTSIDE DIAMETER0.3125 INCHES NOMINAL IN
OVERALL WIDTH0.1094 INCHES NOMINAL IN
BORE DIAMETER0.1562 INCHES NOMINAL IN
LOAD DIRECTIONRADIAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
S155Interchangeable
interchangeable cross-reference
interchangeable
A899Interchangeable
interchangeable cross-reference
interchangeable
A966Interchangeable
interchangeable cross-reference
interchangeable
VT2119Interchangeable
interchangeable cross-reference
interchangeable
FFS85Interchangeable
interchangeable cross-reference
interchangeable
S155AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S155A?
S155A is a BEARING,BALL,ANNULAR.
What parts can replace S155A?
There are 18 known substitutes for S155A: S155, A899, A966 and 15 more. Substitute compatibility should be verified for your specific system.
Is S155A still available?
S155A 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