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Technical Data Sheet
PartsTable / COMPONENT / FFB187/01-335
FFB187/01-335 ✓ 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 FFB187/01-335 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-3878, 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
FFB187/01-335
NSN: 3110-00-100-3878
FSC: 3110
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
Part NumberFFB187/01-335
NSN3110-00-100-3878
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: FFB187/01-335 · 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
•
BACKFACE CORNER RADIUS: 0.0460 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
STYLE DESIGNATOR: STRAIGHT BORE, NORMAL ANGLE
•
OVERALL OUTSIDE DIAMETER: 3.5000 INCHES NOMINAL IN
•
STANDOUT WIDTH: 0.1624 INCHES NOMINAL IN
•
CUP WIDTH: 0.6501 INCHES NOMINAL IN
•
CONE WIDTH: 0.8750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
BACKFACE CORNER RADIUS0.0460 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
STYLE DESIGNATORSTRAIGHT BORE, NORMAL ANGLE
OVERALL OUTSIDE DIAMETER3.5000 INCHES NOMINAL IN
STANDOUT WIDTH0.1624 INCHES NOMINAL IN
CUP WIDTH0.6501 INCHES NOMINAL IN
OVERALL WIDTH0.8125 INCHES NOMINAL IN
CONE WIDTH0.8750 INCHES NOMINAL IN
CONE CORNER RADIUS0.0620 INCHES NOMINAL IN
BORE DIAMETER2.0000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
129020Interchangeable
interchangeable cross-reference
interchangeable
3DD5Interchangeable
interchangeable cross-reference
interchangeable
1779Interchangeable
interchangeable cross-reference
interchangeable
3490-3420Interchangeable
interchangeable cross-reference
interchangeable
A-A-59649AInterchangeable
interchangeable cross-reference
interchangeable
EB510-11Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FFB187/01-335?
FFB187/01-335 is a FFB187/01-335.
What parts can replace FFB187/01-335?
There are 17 known substitutes for FFB187/01-335: 129020, 3DD5, 1779 and 14 more. Substitute compatibility should be verified for your specific system.
Is FFB187/01-335 still available?
FFB187/01-335 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