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PartsTable / COMPONENT / 12Z10840-4
12Z10840-4 ✓ 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 BEARING,ROLLER,SELF-ALIGNING is a the manufacturer industrial component. Key specifications include material: ALUMINUM OR COPPER ALLOY OR STEEL RETAINER, bore_shape: STRAIGHT, bore_diameter: 120.0 MILLIMETERS NOMINAL MM, overall_width: 62.0 MILLIMETERS NOMINAL MM, surface_finish: GROUND, special_features: OIL HOLES AND GROOVE IN OUTER RING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-227-2373, 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
12Z10840-4
NSN: 3110-00-227-2373
FSC: 3110
CAGE: 94135 — NAVAL ORDNANCE STANDARDS (USA)
SPECIFICATIONS
materialALUMINUM OR COPPER ALLOY OR STEEL RETAINER
bore_shapeSTRAIGHT
bore_diameter120.0 MILLIMETERS NOMINAL MM
overall_width62.0 MILLIMETERS NOMINAL MM
surface_finishGROUND
special_featuresOIL HOLES AND GROOVE IN OUTER RING
style_designatorDOUBLE ROW, SPHERICAL ROLLERS, SELF-CONTAINED, OUTER AND INNER RACEWAYS CONCAVE, NON-SEPARABLE
overall_outside_diameter200.0 MILLIMETERS NOMINAL MM
internal_fit-up_designationSTANDARD
standard_tolerance_designationRBEC NO.1
material_document_and_classification66 FED STD ALL MATERIAL RESPONSES ROLLER
NSN3110-00-227-2373
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 12Z10840-4 · 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
•
MATERIAL: STEEL COMP E51100 OR STEEL COMP E52100 ROLLER
•
STANDARD TOLERANCE DESIGNATION: RBEC NO.1
•
OVERALL OUTSIDE DIAMETER: 200.0 MILLIMETERS NOMINAL MM
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OUTER RING
•
STYLE DESIGNATOR: DOUBLE ROW, SPHERICAL ROLLERS, SELF-CONTAINED, OUTER AND INNER RACEWAYS CONCAVE, NON-SEPARABLE
•
SURFACE FINISH: GROUND
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP E51100 OR STEEL COMP E52100 ROLLER
MATERIALSTEEL COMP E51100 OR STEEL COMP E52100 INNER RING
STANDARD TOLERANCE DESIGNATIONRBEC NO.1
OVERALL OUTSIDE DIAMETER200.0 MILLIMETERS NOMINAL MM
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OUTER RING
STYLE DESIGNATORDOUBLE ROW, SPHERICAL ROLLERS, SELF-CONTAINED, OUTER AND INNER RACEWAYS CONCAVE, NON-SEPARABLE
MATERIALALUMINUM OR COPPER ALLOY OR STEEL RETAINER
SURFACE FINISHGROUND
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES INNER RING
MATERIALSTEEL COMP E51100 OR STEEL COMP E52100 OUTER RING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
25D50Interchangeable
interchangeable cross-reference
interchangeable
23124Interchangeable
interchangeable cross-reference
interchangeable
L110MInterchangeable
interchangeable cross-reference
interchangeable
85-10059-09AInterchangeable
interchangeable cross-reference
interchangeable
89-10422-1AInterchangeable
interchangeable cross-reference
interchangeable
2.0SCInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12Z10840-4?
12Z10840-4 is a BEARING,ROLLER,SELF-ALIGNING.
What parts can replace 12Z10840-4?
There are 12 known substitutes for 12Z10840-4: 25D50, 23124, L110M and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 12Z10840-4?
12Z10840-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-227-2373. 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