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Technical Data Sheet

63203LLBC3/EM — BEARING,BALL,ANNULAR

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

63203LLBC3/EM: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include end_item_identification: FAN COIL UNIT, FSCM 38450. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-461-2844, 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
63203LLBC3/EM
NSN: 3110-01-461-2844
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 0LTL1 — NTN BEARING CORPORATION OF AMERICA (USA)
SPECIFICATIONS
end_item_identificationFAN COIL UNIT, FSCM 38450
NSN3110-01-461-2844
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 63203LLBC3/EM · 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
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONFAN COIL UNIT, FSCM 38450
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES 3
BEAR001Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
90D0031 ITEM NO. 11 & 12Reference document
Same NSN cross-reference
Reference document — Secondary reference
MRC6203Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 63203LLBC3/EM?
63203LLBC3/EM is a BEARING,BALL,ANNULAR.
What parts can replace 63203LLBC3/EM?
There are 3 known substitutes for 63203LLBC3/EM: BEAR001, 90D0031 ITEM NO. 11 & 12, MRC6203. Substitute compatibility should be verified for your specific system.
What is the NSN for 63203LLBC3/EM?
63203LLBC3/EM is cataloged in the U.S. Government catalog under NSN 3110-01-461-2844. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.