PartsTable
Technical Data Sheet

FF-B-171/4 — BEARING,BALL,ANNULAR

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

FF-B-171/4: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, bore_shape: STRAIGHT, bore_diameter: 0.6690 INCHES MINIMUM AND 0.6693 INCHES MAXIMUM IN, overall_width: 0.4674 INCHES MINIMUM AND 0.4724 INCHES MAXIMUM IN, load_direction: RADIAL, surface_finish: GROUND. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-074-9221, 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-171/4
NSN: 3110-00-074-9221
NIINs: 000749221, 001077556, 001079889, 001089167, 001089168, 001089169, 001089247, 001091123, 001091124, 001091155, 001091157, 001145990, 001367777, 001448589, 001448594, 001448622, 001448651, 001448928, 001556152, 001556229, 001556233, 001556259, 001556312, 001556464, 001556819, 001570200, 001980889, 001981866, 001982293, 001982848, 002263494, 002272512, 004093268, 004200631, 004367329, 004435871, 005165491, 005165557, 005336724, 005407812, 005420021, 005420047, 005542972, 005543229, 005543425, 005543456, 005543464, 005543618, 005543800, 005545403, 005545411, 005545958, 005555212, 005555472, 005907119, 008247309, 008498941, 009011702, 009027779, 009154933, 009221823, 009298367, 009694494, 009963689, 010102471, 010222516, 010342607
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
bore_shapeSTRAIGHT
bore_diameter0.6690 INCHES MINIMUM AND 0.6693 INCHES MAXIMUM IN
overall_width0.4674 INCHES MINIMUM AND 0.4724 INCHES MAXIMUM IN
seal_quantity2
load_directionRADIAL
surface_finishGROUND
shield_quantity2
special_featuresSELECTED FOR QUIET SMOOTH RUNNING QUALITIES
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
bearing_seal_typeLIPS TURNED INWARDLY
features_providedSNAP RING-GROOVE MOUNTING AND MOUNTING GROOVE
NSN3110-00-074-9221
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: FF-B-171/4 · 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
•
INTERNAL FIT-UP DESIGNATION: LOOSE
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 85.00 MILLIMETERS NOMINAL MM
•
BORE SHAPE: STRAIGHT
•
LOAD DIRECTION: RADIAL
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.5
TECHNICAL CHARACTERISTICS
INTERNAL FIT-UP DESIGNATIONLOOSE
SURFACE FINISHGROUND
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
OVERALL WIDTH19.0 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER85.00 MILLIMETERS NOMINAL MM
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
STANDARD TOLERANCE DESIGNATIONABEC NO.5
BORE DIAMETER45.00 MILLIMETERS NOMINAL MM
MATERIALSTEEL OUTER RING
SUBSTITUTES & CROSS-REFERENCES 5
A-A-59584Reference document
Same NSN cross-reference
Reference document — Identification reference
416821-3KReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
AA59584-109YALTSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
FFB171/04Y09A5EReference document
Same NSN cross-reference
Reference document — Secondary reference
6209YC783Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is FF-B-171/4?
FF-B-171/4 is a BEARING,BALL,ANNULAR.
What parts can replace FF-B-171/4?
There are 5 known substitutes for FF-B-171/4: A-A-59584, 416821-3K, AA59584-109YALT and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FF-B-171/4?
FF-B-171/4 is cataloged in the U.S. Government catalog under NSN 3110-00-074-9221. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.