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9120KFS381A — BEARING,BALL,ANNULAR

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

9120KFS381A: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1008 RETAINER, bore_shape: STRAIGHT, bore_diameter: 3.9362 INCHES MINIMUM AND 3.9370 INCHES MAXIMUM IN, overall_width: 0.9444 INCHES MINIMUM AND 0.9449 INCHES MAXIMUM IN, load_direction: RADIAL, surface_finish: GROUND. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-263-5659, 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
9120KFS381A
NSN: 3110-01-263-5659
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 21335 — TIMKEN CO DIV THE TIMKEN COMPANY (USA)
SPECIFICATIONS
materialSTEEL COMP 1008 RETAINER
bore_shapeSTRAIGHT
bore_diameter3.9362 INCHES MINIMUM AND 3.9370 INCHES MAXIMUM IN
overall_width0.9444 INCHES MINIMUM AND 0.9449 INCHES MAXIMUM IN
load_directionRADIAL
surface_finishGROUND
style_designatorLOADING GROOVE, NON-SEPARABLE
overall_outside_diameter5.9047 INCHES MINIMUM AND 5.9055 INCHES MAXIMUM IN
NSN3110-01-263-5659
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 9120KFS381A · 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
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: LOADING GROOVE, NON-SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 5.9047 INCHES MINIMUM AND 5.9055 INCHES MAXIMUM IN
•
BORE SHAPE: STRAIGHT
•
LOAD DIRECTION: RADIAL
•
BORE DIAMETER: 3.9362 INCHES MINIMUM AND 3.9370 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP E52100 BALL
TECHNICAL CHARACTERISTICS
SURFACE FINISHGROUND
STYLE DESIGNATORLOADING GROOVE, NON-SEPARABLE
OVERALL WIDTH0.9444 INCHES MINIMUM AND 0.9449 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER5.9047 INCHES MINIMUM AND 5.9055 INCHES MAXIMUM IN
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
BORE DIAMETER3.9362 INCHES MINIMUM AND 3.9370 INCHES MAXIMUM IN
MATERIALSTEEL COMP E52100 BALL
MATERIALSTEEL COMP 1008 RETAINER
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 9120KFS381A?
9120KFS381A is a BEARING,BALL,ANNULAR.
What is the NSN for 9120KFS381A?
9120KFS381A is cataloged in the U.S. Government catalog under NSN 3110-01-263-5659. 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.