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Technical Data Sheet
PartsTable / COMPONENT / 6203/C3-1Z
6203/C3-1Z ✓ 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 6203/C3-1Z is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-554-3456, 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
6203/C3-1Z
NSN: 3110-00-554-3456
FSC: 3110
CAGE: 1FJ55 — KAMAN BEARING AND SUPPLY CORP (USA)
SPECIFICATIONS
Part Number6203/C3-1Z
NSN3110-00-554-3456
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 6203/C3-1Z · 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
•
RETAINER FABRICATION METHOD: PRESSED
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
MATERIAL: STEEL OVERALL
•
OVERALL OUTSIDE DIAMETER: 40.0 MILLIMETERS NOMINAL MM
•
SHIELD QUANTITY: 1
•
LOAD DIRECTION: RADIAL
•
INTERNAL FIT-UP DESIGNATION: LOOSE
•
BORE SHAPE: STRAIGHT
TECHNICAL CHARACTERISTICS (FLIS)
RETAINER FABRICATION METHODPRESSED
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
MATERIALSTEEL OVERALL
OVERALL OUTSIDE DIAMETER40.0 MILLIMETERS NOMINAL MM
SHIELD QUANTITY1
LOAD DIRECTIONRADIAL
INTERNAL FIT-UP DESIGNATIONLOOSE
BORE SHAPESTRAIGHT
STANDARD TOLERANCE DESIGNATIONABEC NO.1
SURFACE FINISHGROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
203SInterchangeable
interchangeable cross-reference
interchangeable
423648C91Interchangeable
interchangeable cross-reference
interchangeable
029-12218AInterchangeable
interchangeable cross-reference
interchangeable
203SQ6B7Interchangeable
interchangeable cross-reference
interchangeable
6203CSDIN625Interchangeable
interchangeable cross-reference
interchangeable
12SP84Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6203/C3-1Z?
6203/C3-1Z is a 6203/C3-1Z.
What parts can replace 6203/C3-1Z?
There are 18 known substitutes for 6203/C3-1Z: 203S, 423648C91, 029-12218A and 15 more. Substitute compatibility should be verified for your specific system.
Is 6203/C3-1Z still available?
6203/C3-1Z 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