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Technical Data Sheet
PartsTable / COMPONENT / 77203
77203 ✓ Verified by PartsTable
Legrand · 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

SPINDLE,WHEEL,DRIVING-NONDRIVING. Key specifications include special_features: CONSISTS OF ARM 1,SPINDLE 1,LUB FITTINGS 2; 5.489 IN. O/A W IN.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-144-8589, 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
77203
NSN: 3110-00-144-8589
FSC: 3110
CAGE: 79347 — WILLIAMS SALES CORP (USA)
SPECIFICATIONS
special_featuresCONSISTS OF ARM 1,SPINDLE 1,LUB FITTINGS 2; 5.489 IN. O/A W IN
NSN3110-00-144-8589
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 77203 · Legrand ⚠ 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 33
3015AInterchangeable
interchangeable cross-reference
interchangeable
P8405D008Interchangeable
interchangeable cross-reference
interchangeable
085-101-0007Interchangeable
interchangeable cross-reference
interchangeable
77503XR1CInterchangeable
interchangeable cross-reference
interchangeable
0100807-00Interchangeable
interchangeable cross-reference
interchangeable
0542228Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 77203?
77203 is a SPINDLE,WHEEL,DRIVING-NONDRIVING manufactured by Legrand.
What parts can replace 77203?
There are 33 known substitutes for 77203: 3015A, P8405D008, 085-101-0007 and 30 more. Substitute compatibility should be verified for your specific system.
Is 77203 still available?
77203 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