PartsTable
Technical Data Sheet
PartsTable / COMPONENT / FF-B-187/01-684
FF-B-187/01-684 ✓ 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-187/01-684 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 3110-00-101-0998, 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-187/01-684
NSN: 3110-00-101-0998
FSC: 3110
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
Part NumberFF-B-187/01-684
NSN3110-00-101-0998
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: FF-B-187/01-684 · 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: 3.8750 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
MATERIAL: STEEL OVERALL
•
CONE CORNER RADIUS: 0.1406 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NORMAL ANGLE
•
CONE WIDTH: 2.2650 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
BORE DIAMETER3.8750 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
MATERIALSTEEL OVERALL
CONE CORNER RADIUS0.1406 INCHES NOMINAL IN
STYLE DESIGNATORNORMAL ANGLE
CONE WIDTH2.2650 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
86-6Interchangeable
interchangeable cross-reference
interchangeable
MIL-C-22520/7Interchangeable
interchangeable cross-reference
interchangeable
11616730Interchangeable
interchangeable cross-reference
interchangeable
886Interchangeable
interchangeable cross-reference
interchangeable
1078Interchangeable
interchangeable cross-reference
interchangeable
130113Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FF-B-187/01-684?
FF-B-187/01-684 is a FF-B-187/01-684.
What parts can replace FF-B-187/01-684?
There are 25 known substitutes for FF-B-187/01-684: 86-6, MIL-C-22520/7, 11616730 and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FF-B-187/01-684?
FF-B-187/01-684 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-101-0998. 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