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Technical Data Sheet
PartsTable / COMPONENT / 63203LLBPM/9B
63203LLBPM/9B ✓ 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 63203LLBPM/9B is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-991-0934, 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
63203LLBPM/9B
NSN: 3110-00-991-0934
FSC: 3110
CAGE: 23803 — N T N BEARING CORP OF AMERICA (USA)
SPECIFICATIONS
Part Number63203LLBPM/9B
NSN3110-00-991-0934
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 63203LLBPM/9B · 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
•
NONDEFINITIVE SPEC/STD DATA: 120 TYPE
•
MATERIAL: STEEL COMP E52100 BALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OUTER RING
•
SEAL QUANTITY: 2
•
LOAD DIRECTION: RADIAL
•
LUBRICATION MATERIAL: GREASE
•
BEARING SEAL TYPE: LIPS TURNED OUTWARDLY
•
RETAINER FABRICATION METHOD: PRESSED
TECHNICAL CHARACTERISTICS (FLIS)
NONDEFINITIVE SPEC/STD DATA120 TYPE
MATERIALSTEEL COMP E52100 BALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OUTER RING
SEAL QUANTITY2
LOAD DIRECTIONRADIAL
LUBRICATION MATERIALGREASE
BEARING SEAL TYPELIPS TURNED OUTWARDLY
RETAINER FABRICATION METHODPRESSED
CRITICALITY CODE JUSTIFICATIONZZZW
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 36
MILB17931BInterchangeable
interchangeable cross-reference
interchangeable
10264PC10Interchangeable
interchangeable cross-reference
interchangeable
1515668PC4Interchangeable
interchangeable cross-reference
interchangeable
6208-7077V4Interchangeable
interchangeable cross-reference
interchangeable
208TMT58VBInterchangeable
interchangeable cross-reference
interchangeable
6208W1BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 63203LLBPM/9B?
63203LLBPM/9B is a 63203LLBPM/9B.
What parts can replace 63203LLBPM/9B?
There are 36 known substitutes for 63203LLBPM/9B: MILB17931B, 10264PC10, 1515668PC4 and 33 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 63203LLBPM/9B?
63203LLBPM/9B is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-991-0934. 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