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Technical Data Sheet
PartsTable / COMPONENT / FF-B-171/25J09A2C
FF-B-171/25J09A2C ✓ 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 FF-B-171/25J09A2C 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 3110-00-156-8058, 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
FF-B-171/25J09A2C
NSN: 3110-00-156-8058
FSC: 3110
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
Part NumberFF-B-171/25J09A2C
NSN3110-00-156-8058
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: FF-B-171/25J09A2C · 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 SHAPE: STRAIGHT
•
OVERALL OUTSIDE DIAMETER: 85.00 MILLIMETERS NOMINAL MM
•
STYLE DESIGNATOR: COUNTERBORED OUTER RING, NON-SEPARABLE
•
CONTACT ANGLE: 25.0 DEGREES MINIMUM
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
BORE SHAPESTRAIGHT
OVERALL OUTSIDE DIAMETER85.00 MILLIMETERS NOMINAL MM
STYLE DESIGNATORCOUNTERBORED OUTER RING, NON-SEPARABLE
BORE SHAPESTRAIGHT
CONTACT ANGLE25.0 DEGREES MINIMUM
MATERIALSTEEL OVERALL
STYLE DESIGNATORCOUNTERBORED OUTER RING, NON-SEPARABLE
MATERIALSTEEL OVERALL
OVERALL WIDTH19.0 MILLIMETERS NOMINAL MM
RETAINER FABRICATION METHODPRESSED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
701-4711389 PIECE 25Interchangeable
interchangeable cross-reference
interchangeable
908095Interchangeable
interchangeable cross-reference
interchangeable
YT9418738Interchangeable
interchangeable cross-reference
interchangeable
33891Interchangeable
interchangeable cross-reference
interchangeable
705776Interchangeable
interchangeable cross-reference
interchangeable
27801Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FF-B-171/25J09A2C?
FF-B-171/25J09A2C is a FF-B-171/25J09A2C.
What parts can replace FF-B-171/25J09A2C?
There are 29 known substitutes for FF-B-171/25J09A2C: 701-4711389 PIECE 25, 908095, YT9418738 and 26 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FF-B-171/25J09A2C?
FF-B-171/25J09A2C is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-8058. 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