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Technical Data Sheet
PartsTable / COMPONENT / FFB171/05J11B2B
FFB171/05J11B2B ✓ 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 FFB171/05J11B2B 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 3110-00-752-7775, 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
FFB171/05J11B2B
NSN: 3110-00-752-7775
FSC: 3110
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
Part NumberFFB171/05J11B2B
NSN3110-00-752-7775
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: FFB171/05J11B2B · 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
•
BORE DIAMETER: 55.00 MILLIMETERS NOMINAL MM
•
LUBRICATION MATERIAL: GREASE
•
BORE SHAPE: STRAIGHT
•
LOAD DIRECTION: RADIAL
•
RETAINER FABRICATION METHOD: PRESSED
•
SHIELD QUANTITY: 1
•
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: DOD-G-24508 MIL SPEC SINGLE MATERIAL RESPONSE
•
INTERNAL FIT-UP DESIGNATION: LOOSE
TECHNICAL CHARACTERISTICS (FLIS)
BORE DIAMETER55.00 MILLIMETERS NOMINAL MM
LUBRICATION MATERIALGREASE
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
RETAINER FABRICATION METHODPRESSED
SHIELD QUANTITY1
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONDOD-G-24508 MIL SPEC SINGLE MATERIAL RESPONSE
INTERNAL FIT-UP DESIGNATIONLOOSE
STANDARD TOLERANCE DESIGNATIONABEC NO.1
SURFACE FINISHGROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 34
610697Interchangeable
interchangeable cross-reference
interchangeable
900553Interchangeable
interchangeable cross-reference
interchangeable
25T819D7Interchangeable
interchangeable cross-reference
interchangeable
308KDDFS160Interchangeable
interchangeable cross-reference
interchangeable
308SFFB107A006A75C0000-0Interchangeable
interchangeable cross-reference
interchangeable
77608X1MILG3278AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FFB171/05J11B2B?
FFB171/05J11B2B is a FFB171/05J11B2B.
What parts can replace FFB171/05J11B2B?
There are 34 known substitutes for FFB171/05J11B2B: 610697, 900553, 25T819D7 and 31 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FFB171/05J11B2B?
FFB171/05J11B2B is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-752-7775. 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