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FF-B-171/21-J16A2C — Technical Data Sheet

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— · 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 BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 80.00 MILLIMETERS NOMINAL MM, contact_angle: 25.0 DEGREES MAXIMUM, overall_width: 26.00 MILLIMETERS NOMINAL MM, load_direction: ANGULAR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 3110-00-156-7603, 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-171/21-J16A2C
NSN: 3110-00-156-7603
FSC: 3110
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter80.00 MILLIMETERS NOMINAL MM
contact_angle25.0 DEGREES MAXIMUM
overall_width26.00 MILLIMETERS NOMINAL MM
load_directionANGULAR
surface_finishGROUND
style_designatorCOUNTERBORED OUTER RING, NON-SEPARABLE
overall_outside_diameter140.00 MILLIMETERS NOMINAL MM
retainer_fabrication_methodPRESSED
standard_tolerance_designationABEC NO.1
NSN3110-00-156-7603
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: FF-B-171/21-J16A2C · 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
•
STYLE DESIGNATOR: COUNTERBORED OUTER RING, NON-SEPARABLE
•
CONTACT ANGLE: 25.0 DEGREES MAXIMUM
•
LOAD DIRECTION: ANGULAR
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
BORE SHAPE: STRAIGHT
TECHNICAL CHARACTERISTICS
OVERALL WIDTH26.00 MILLIMETERS NOMINAL MM
MATERIALSTEEL OVERALL
STYLE DESIGNATORCOUNTERBORED OUTER RING, NON-SEPARABLE
CONTACT ANGLE25.0 DEGREES MAXIMUM
LOAD DIRECTIONANGULAR
STANDARD TOLERANCE DESIGNATIONABEC NO.1
CONTACT ANGLE25.0 DEGREES MAXIMUM
BORE SHAPESTRAIGHT
STANDARD TOLERANCE DESIGNATIONABEC NO.1
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 33
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LA45InterchangeableGOVERNMENT REGISTRY
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4190InterchangeableGOVERNMENT REGISTRY
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214RInterchangeableGOVERNMENT REGISTRY
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AA59625-114TABTInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
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A16241-6InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
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LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FF-B-171/21-J16A2C?
FF-B-171/21-J16A2C is a BEARING,BALL,ANNULAR.
What parts can replace FF-B-171/21-J16A2C?
There are 33 known substitutes for FF-B-171/21-J16A2C: S-1318, LA45, 4190 and 30 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FF-B-171/21-J16A2C?
FF-B-171/21-J16A2C is cataloged in the Federal Logistics Information System under NSN 3110-00-156-7603. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: September 2026