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PartsTable / COMPONENT / 20203DF
20203DF ✓ 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,DUPLEX is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_diameter: 17.00 MILLIMETERS NOMINAL MM, overall_width: 24.0 MILLIMETERS NOMINAL MM, load_direction: ANGULAR, surface_finish: GROUND, style_designator: COUNTERBORED OUTER RINGS, NON-SEPARABLE, FACE TO FACE MOUNTING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-6756, 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
20203DF
NSN: 3110-00-156-6756
FSC: 3110
CAGE: 7X677 — GENERAL MOTORS LLC DBA GENERAL MOTORS LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_diameter17.00 MILLIMETERS NOMINAL MM
overall_width24.0 MILLIMETERS NOMINAL MM
load_directionANGULAR
surface_finishGROUND
style_designatorCOUNTERBORED OUTER RINGS, NON-SEPARABLE, FACE TO FACE MOUNTING
overall_outside_diameter40.00 MILLIMETERS NOMINAL MM
bearing_preload_designationLIGHT
retainer_fabrication_methodPRESSED
standard_tolerance_designationABEC NO.1
NSN3110-00-156-6756
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 20203DF · 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
•
BEARING PRELOAD DESIGNATION: LIGHT
•
LOAD DIRECTION: ANGULAR
•
SURFACE FINISH: GROUND
•
BORE DIAMETER: 17.00 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS (FLIS)
STANDARD TOLERANCE DESIGNATIONABEC NO.1
BEARING PRELOAD DESIGNATIONLIGHT
BEARING PRELOAD DESIGNATIONLIGHT
LOAD DIRECTIONANGULAR
SURFACE FINISHGROUND
LOAD DIRECTIONANGULAR
BORE DIAMETER17.00 MILLIMETERS NOMINAL MM
STANDARD TOLERANCE DESIGNATIONABEC NO.1
MATERIALSTEEL OVERALL
STYLE DESIGNATORCOUNTERBORED OUTER RINGS, NON-SEPARABLE, FACE TO FACE MOUNTING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
1204-02Interchangeable
interchangeable cross-reference
interchangeable
23828Interchangeable
interchangeable cross-reference
interchangeable
23988Interchangeable
interchangeable cross-reference
interchangeable
120402-2Interchangeable
Mobile M2-M3a2,trailer System
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20203DF?
20203DF is a BEARING,BALL,DUPLEX.
What parts can replace 20203DF?
There are 4 known substitutes for 20203DF: 1204-02, 23828, 23988 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20203DF?
20203DF is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-6756. 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