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Technical Data Sheet
PartsTable / COMPONENT / 1M4120
1M4120 ✓ 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

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 75.0 MILLIMETERS NOMINAL MM, overall_width: 20.0 MILLIMETERS NOMINAL MM, surface_finish: GROUND, style_designator: INNER RING, ROLLER, CYLINDRICAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-966-7467, 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
1M4120
NSN: 3110-00-966-7467
FSC: 3110
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter75.0 MILLIMETERS NOMINAL MM
overall_width20.0 MILLIMETERS NOMINAL MM
surface_finishGROUND
style_designatorINNER RING, ROLLER, CYLINDRICAL
overall_outside_diameter3.3550 INCHES NOMINAL IN
standard_tolerance_designationRBEC NO.1
NSN3110-00-966-7467
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1M4120 · 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
•
OVERALL OUTSIDE DIAMETER: 3.3550 INCHES NOMINAL IN
•
STYLE DESIGNATOR: INNER RING, ROLLER, CYLINDRICAL
•
MATERIAL: STEEL OVERALL
•
BORE SHAPE: STRAIGHT
•
BORE DIAMETER: 75.0 MILLIMETERS NOMINAL MM
•
STANDARD TOLERANCE DESIGNATION: RBEC NO.1
•
SURFACE FINISH: GROUND
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL OUTSIDE DIAMETER3.3550 INCHES NOMINAL IN
STYLE DESIGNATORINNER RING, ROLLER, CYLINDRICAL
MATERIALSTEEL OVERALL
BORE SHAPESTRAIGHT
BORE DIAMETER75.0 MILLIMETERS NOMINAL MM
STANDARD TOLERANCE DESIGNATIONRBEC NO.1
OVERALL WIDTH20.0 MILLIMETERS NOMINAL MM
SURFACE FINISHGROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
A1015Interchangeable
interchangeable cross-reference
interchangeable
502Interchangeable
interchangeable cross-reference
interchangeable
87-0382Interchangeable
interchangeable cross-reference
interchangeable
B149-2ALT0PC3Interchangeable
interchangeable cross-reference
interchangeable
MCF12847Interchangeable
interchangeable cross-reference
interchangeable
XP-1015Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1M4120?
1M4120 is a FILTER,RADIO FREQUENCY INTERFERE.
What parts can replace 1M4120?
There are 10 known substitutes for 1M4120: A1015, 502, 87-0382 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1M4120?
1M4120 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-966-7467. 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