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Technical Data Sheet
PartsTable / COMPONENT / 451590R91
451590R91 ✓ 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,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, body_style: RECTANGULAR SHAPE, point_type: CONVENTIONAL, point_angle: 118.0 DEGREES NOMINAL, shank_style: STANDARD TAPER W/TANG, flute_length: 3.875 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-554-5407, 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
451590R91
NSN: 3110-00-554-5407
FSC: 3110
CAGE: 29930 — INTERNATIONAL HARVESTER CO AGRICULTURAL EQUIPMENT DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_styleRECTANGULAR SHAPE
point_typeCONVENTIONAL
point_angle118.0 DEGREES NOMINAL
shank_styleSTANDARD TAPER W/TANG
flute_length3.875 INCHES NOMINAL IN
overall_width0.750 INCHES NOMINAL IN
flute_quantity2
overall_height0.734 INCHES NOMINAL IN
overall_length7.250 INCHES NOMINAL IN
insert_materialPLASTIC DIALLYL PHTHALATE SINGLE MATING END
special_featuresTAPER SHANK LG; FRACTIONAL SIZE 27/64
NSN3110-00-554-5407
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 451590R91 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 33
10187806-001Interchangeable
interchangeable cross-reference
interchangeable
200276-7Interchangeable
interchangeable cross-reference
interchangeable
200276-4Interchangeable
interchangeable cross-reference
interchangeable
FF-B-171/03J12D2EInterchangeable
interchangeable cross-reference
interchangeable
93L12Interchangeable
interchangeable cross-reference
interchangeable
104KSFFInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 451590R91?
451590R91 is a BEARING,BALL,ANNULAR.
What parts can replace 451590R91?
There are 33 known substitutes for 451590R91: 10187806-001, 200276-7, 200276-4 and 30 more. Substitute compatibility should be verified for your specific system.
Is 451590R91 still available?
451590R91 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026