PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 203SFF
203SFF ✓ 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 end_item_identification: WASP CLASS LHD. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-145-2249, 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
203SFF
NSN: 3110-00-145-2249
FSC: 3110
CAGE: 01425 — LOUIS ALLIS CO THE THIS COMPANY HAS GONE BANKRUPT AND HAS BEEN PURCHASED BY 3 COMPANIES (USA)
SPECIFICATIONS
end_item_identificationWASP CLASS LHD
NSN3110-00-145-2249
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 203SFF · 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
•
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-L-15719 MIL SPEC SINGLE MATERIAL RESPONSE
•
BORE SHAPE: STRAIGHT
•
LOAD DIRECTION: RADIAL
•
SHIELD QUANTITY: 2
•
SURFACE FINISH: GROUND
•
MATERIAL: STEEL OVERALL
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
TECHNICAL CHARACTERISTICS (FLIS)
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-L-15719 MIL SPEC SINGLE MATERIAL RESPONSE
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
SHIELD QUANTITY2
SURFACE FINISHGROUND
MATERIALSTEEL OVERALL
OVERALL WIDTH12.0 MILLIMETERS NOMINAL MM
STANDARD TOLERANCE DESIGNATIONABEC NO.1
OVERALL OUTSIDE DIAMETER40.00 MILLIMETERS NOMINAL MM
INTERNAL FIT-UP DESIGNATIONSTANDARD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
416821-2DInterchangeable
interchangeable cross-reference
interchangeable
801621-018 PIECE 1Interchangeable
interchangeable cross-reference
interchangeable
17BC02XPP3H26Interchangeable
interchangeable cross-reference
interchangeable
77503Interchangeable
interchangeable cross-reference
interchangeable
6203ZInterchangeable
interchangeable cross-reference
interchangeable
203SFInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 203SFF?
203SFF is a BEARING,BALL,ANNULAR.
What parts can replace 203SFF?
There are 18 known substitutes for 203SFF: 416821-2D, 801621-018 PIECE 1, 17BC02XPP3H26 and 15 more. Substitute compatibility should be verified for your specific system.
Is 203SFF still available?
203SFF 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