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Technical Data Sheet
PartsTable / COMPONENT / 1F4503
1F4503 ✓ 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,NEEDLE is a the manufacturer industrial component. Key specifications include height: 1.219 INCHES NOMINAL IN, length: 1.562 INCHES NOMINAL IN, material: STEEL OVERALL, seat_angle: 37.0 DEGREES ALL ENDS, duty_rating: MEDIUM SERVICE, thread_class: 2A ALL ENDS A. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-120-3085, 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
1F4503
NSN: 3110-00-120-3085
FSC: 3110
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
height1.219 INCHES NOMINAL IN
length1.562 INCHES NOMINAL IN
materialSTEEL OVERALL
seat_angle37.0 DEGREES ALL ENDS
duty_ratingMEDIUM SERVICE
thread_class2A ALL ENDS A
throat_depth2.250 INCHES NOMINAL IN
overall_width0.870 INCHES NOMINAL IN
overall_height0.430 INCHES NOMINAL IN
overall_length0.870 INCHES NOMINAL IN
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
drive_end_shapeSQUARE SECOND END EXTERNAL
NSN3110-00-120-3085
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1F4503 · 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 27
B108Interchangeable
interchangeable cross-reference
interchangeable
A-A-52160/B108Interchangeable
interchangeable cross-reference
interchangeable
A-A-52160Interchangeable
interchangeable cross-reference
interchangeable
6S6-120VInterchangeable
interchangeable cross-reference
interchangeable
8017/21-03-5 GR EEN 120V 60HZInterchangeable
interchangeable cross-reference
interchangeable
656-120/125VInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1F4503?
1F4503 is a BEARING,ROLLER,NEEDLE.
What parts can replace 1F4503?
There are 27 known substitutes for 1F4503: B108, A-A-52160/B108, A-A-52160 and 24 more. Substitute compatibility should be verified for your specific system.
Is 1F4503 still available?
1F4503 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