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Technical Data Sheet
PartsTable / COMPONENT / FF-B-171/29Y05A2C
FF-B-171/29Y05A2C ✓ 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-171/29Y05A2C 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 3110-00-990-6442, 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-171/29Y05A2C
NSN: 3110-00-990-6442
FSC: 3110
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
Part NumberFF-B-171/29Y05A2C
NSN3110-00-990-6442
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: FF-B-171/29Y05A2C · 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
•
MATERIAL: STEEL OVERALL
•
BORE DIAMETER: 25.00 MILLIMETERS NOMINAL MM
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
LOAD DIRECTION: ANGULAR
•
OVERALL OUTSIDE DIAMETER: 52.00 MILLIMETERS NOMINAL MM
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
SHIELD QUANTITY: 0
•
RETAINER FABRICATION METHOD: PRESSED
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
BORE DIAMETER25.00 MILLIMETERS NOMINAL MM
INTERNAL FIT-UP DESIGNATIONSTANDARD
LOAD DIRECTIONANGULAR
OVERALL OUTSIDE DIAMETER52.00 MILLIMETERS NOMINAL MM
STANDARD TOLERANCE DESIGNATIONABEC NO.1
SHIELD QUANTITY0
RETAINER FABRICATION METHODPRESSED
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
SPECIAL FEATURESPAIR OF BEARINGS FOR DUPLEX MTG;LUBRICATION MATERIAL IS PRESERVATIVE LMDC -MIL-DTL-197
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
D20077P88Interchangeable
interchangeable cross-reference
interchangeable
112ACInterchangeable
interchangeable cross-reference
interchangeable
FF-B-171/29T01A2CInterchangeable
interchangeable cross-reference
interchangeable
22-05Interchangeable
interchangeable cross-reference
interchangeable
GNBA17-5PC32Interchangeable
interchangeable cross-reference
interchangeable
166362-17Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FF-B-171/29Y05A2C?
FF-B-171/29Y05A2C is a FF-B-171/29Y05A2C.
What parts can replace FF-B-171/29Y05A2C?
There are 8 known substitutes for FF-B-171/29Y05A2C: D20077P88, 112AC, FF-B-171/29T01A2C and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FF-B-171/29Y05A2C?
FF-B-171/29Y05A2C is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-990-6442. 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