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Technical Data Sheet
PartsTable / COMPONENT / FF-B-171/21J01A2C
FF-B-171/21J01A2C ✓ 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-171/21J01A2C 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 3110-00-278-7320, 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-171/21J01A2C
NSN: 3110-00-278-7320
FSC: 3110
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
Part NumberFF-B-171/21J01A2C
NSN3110-00-278-7320
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: FF-B-171/21J01A2C · 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
•
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-L-15719 MIL SPEC SINGLE MATERIAL RESPONSE
•
RETAINER FABRICATION METHOD: PRESSED
•
LOAD DIRECTION: RADIAL
•
SURFACE FINISH: GROUND
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
SEAL QUANTITY: 2
•
BORE SHAPE: STRAIGHT
TECHNICAL CHARACTERISTICS (FLIS)
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-L-15719 MIL SPEC SINGLE MATERIAL RESPONSE
RETAINER FABRICATION METHODPRESSED
SPECIAL FEATURES50 PCT FULL OF MIL-G-15719
LOAD DIRECTIONRADIAL
SURFACE FINISHGROUND
INTERNAL FIT-UP DESIGNATIONSTANDARD
SEAL QUANTITY2
BORE SHAPESTRAIGHT
STANDARD TOLERANCE DESIGNATIONABEC NO.1
LUBRICATION MATERIALGREASE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
214RInterchangeable
interchangeable cross-reference
interchangeable
AA59625-114TABTInterchangeable
interchangeable cross-reference
interchangeable
A16241-6Interchangeable
interchangeable cross-reference
interchangeable
P9618566-1Interchangeable
interchangeable cross-reference
interchangeable
FFB171/21Y11A2EInterchangeable
interchangeable cross-reference
interchangeable
7211WNDUInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FF-B-171/21J01A2C?
FF-B-171/21J01A2C is a FF-B-171/21J01A2C.
What parts can replace FF-B-171/21J01A2C?
There are 19 known substitutes for FF-B-171/21J01A2C: 214R, AA59625-114TABT, A16241-6 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FF-B-171/21J01A2C?
FF-B-171/21J01A2C is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-278-7320. 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