PartsTable
Technical Data Sheet
PartsTable / MRO / 203S
203S ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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 color: BLACK SINGLE ACTUATOR, material: STEEL OUTER RING, body_style: BUSHING MOUNTED, bore_shape: STRAIGHT, body_length: 0.531 INCHES NOMINAL IN, bore_diameter: 17.00 MILLIMETERS NOMINAL MM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-5167, 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
MRO→ MRO_GENERAL→ 203S
NSN: 3110-00-156-5167
FSC: 3110
CAGE: 21760 — SCHATZ BEARING CORPORATION DBA SCHATZ BEARING CORP (USA)
SPECIFICATIONS
colorBLACK SINGLE ACTUATOR
materialSTEEL OUTER RING
body_styleBUSHING MOUNTED
bore_shapeSTRAIGHT
body_length0.531 INCHES NOMINAL IN
bore_diameter17.00 MILLIMETERS NOMINAL MM
overall_width1.031 INCHES NOMINAL IN
actuator_styleROUND
alignment_typeSELF-ALIGNING
bushing_length0.375 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
load_directionRADIAL
NSN3110-00-156-5167
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 203S · 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
•
MATERIAL: STEEL OVERALL
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
LOAD DIRECTION: RADIAL
•
BORE SHAPE: STRAIGHT
•
RETAINER FABRICATION METHOD: PRESSED
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
STANDARD TOLERANCE DESIGNATIONABEC NO.1
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
LOAD DIRECTIONRADIAL
STANDARD TOLERANCE DESIGNATIONABEC NO.1
MATERIALSTEEL OVERALL
BORE SHAPESTRAIGHT
RETAINER FABRICATION METHODPRESSED
BORE DIAMETER17.00 MILLIMETERS NOMINAL MM
SELF-ALIGNMENT LOCATIONEXTERNAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
203SInterchangeable
interchangeable cross-reference
interchangeable
423648C91Interchangeable
interchangeable cross-reference
interchangeable
416821-66DInterchangeable
interchangeable cross-reference
interchangeable
903203Interchangeable
interchangeable cross-reference
interchangeable
AS1937-6Interchangeable
interchangeable cross-reference
interchangeable
521059-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 203S?
203S is a BEARING,BALL,ANNULAR. It is classified as a MRO (MRO_GENERAL).
What parts can replace 203S?
There are 11 known substitutes for 203S: 203S, 423648C91, 416821-66D and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 203S?
203S is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-5167. 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