PartsTable
Technical Data Sheet
PartsTable / COMPONENT / FF-B-187/01-365
FF-B-187/01-365 ✓ 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-187/01-365 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 3110-00-275-0248, 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-187/01-365
NSN: 3110-00-275-0248
FSC: 3110
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
Part NumberFF-B-187/01-365
NSN3110-00-275-0248
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: FF-B-187/01-365 · 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
•
CUP WIDTH: 1.1250 INCHES NOMINAL IN
•
CONE WIDTH: 1.4375 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 4
•
BORE DIAMETER: 2.0000 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.1300 INCHES NOMINAL IN
•
OVERALL OUTSIDE DIAMETER: 4.1250 INCHES NOMINAL IN
•
RETAINER FABRICATION METHOD: PRESSED
•
STANDOUT WIDTH: 0.3125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CUP WIDTH1.1250 INCHES NOMINAL IN
CONE WIDTH1.4375 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 4
BORE DIAMETER2.0000 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.1300 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER4.1250 INCHES NOMINAL IN
RETAINER FABRICATION METHODPRESSED
STANDOUT WIDTH0.3125 INCHES NOMINAL IN
CONE CORNER RADIUS0.1400 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT BORE, NORMAL ANGLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
A-A-59649BInterchangeable
interchangeable cross-reference
interchangeable
13889-13830Interchangeable
interchangeable cross-reference
interchangeable
11592012Interchangeable
interchangeable cross-reference
interchangeable
A-A-59649-546Interchangeable
interchangeable cross-reference
interchangeable
X18D16Interchangeable
interchangeable cross-reference
interchangeable
264903-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FF-B-187/01-365?
FF-B-187/01-365 is a FF-B-187/01-365.
What parts can replace FF-B-187/01-365?
There are 23 known substitutes for FF-B-187/01-365: A-A-59649B, 13889-13830, 11592012 and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FF-B-187/01-365?
FF-B-187/01-365 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-275-0248. 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