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Technical Data Sheet
PartsTable / COMPONENT / D303261-31
D303261-31 ✓ 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,CYLINDRICAL is a the manufacturer industrial component. Key specifications include material: STEEL OUTER RING, bore_shape: STRAIGHT, bore_diameter: 90.0 MILLIMETERS NOMINAL MM, overall_width: 30.0 MILLIMETERS NOMINAL MM, surface_finish: GROUND, locating_feature: NONLOCATING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-192-3389, 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
D303261-31
NSN: 3110-01-192-3389
FSC: 3110
CAGE: 3X894 — CONTROL FLOW, INC. DBA CONTROL FLOW INC (USA)
SPECIFICATIONS
materialSTEEL OUTER RING
bore_shapeSTRAIGHT
bore_diameter90.0 MILLIMETERS NOMINAL MM
overall_width30.0 MILLIMETERS NOMINAL MM
surface_finishGROUND
locating_featureNONLOCATING
style_designatorSINGLE ROW, NON-LOCATING, CYLINDRICAL INNER RING, TWO LIP OUTER RING, SEPARABLE
overall_outside_diameter160.0 MILLIMETERS NOMINAL MM
internal_fit-up_designationSTANDARD
retainer_fabrication_methodPRESSED
standard_tolerance_designationRBEC NO.1
NSN3110-01-192-3389
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: D303261-31 · 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: 160.0 MILLIMETERS NOMINAL MM
•
RETAINER FABRICATION METHOD: PRESSED
•
MATERIAL: STEEL OUTER RING
•
STYLE DESIGNATOR: SINGLE ROW, NON-LOCATING, CYLINDRICAL INNER RING, TWO LIP OUTER RING, SEPARABLE
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL OUTSIDE DIAMETER160.0 MILLIMETERS NOMINAL MM
RETAINER FABRICATION METHODPRESSED
OVERALL WIDTH30.0 MILLIMETERS NOMINAL MM
MATERIALSTEEL OUTER RING
MATERIALCOPPER ALLOY OR STEEL RETAINER
MATERIALSTEEL INNER RING
MATERIALSTEEL ROLLER
STYLE DESIGNATORSINGLE ROW, NON-LOCATING, CYLINDRICAL INNER RING, TWO LIP OUTER RING, SEPARABLE
LOCATING FEATURENONLOCATING
SURFACE FINISHGROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
U1207TMInterchangeable
interchangeable cross-reference
interchangeable
75-1228X258Interchangeable
interchangeable cross-reference
interchangeable
1228X258Interchangeable
interchangeable cross-reference
interchangeable
502257Interchangeable
interchangeable cross-reference
interchangeable
R120EInterchangeable
interchangeable cross-reference
interchangeable
NUL20Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D303261-31?
D303261-31 is a BEARING,ROLLER,CYLINDRICAL.
What parts can replace D303261-31?
There are 31 known substitutes for D303261-31: U1207TM, 75-1228X258, 1228X258 and 28 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D303261-31?
D303261-31 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-192-3389. 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