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Technical Data Sheet
PartsTable / COMPONENT / 99503
99503 ✓ 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, hole_diameter: 1.000 INCHES NOMINAL IN, overall_width: 1.500 INCHES NOMINAL IN, overall_length: 3.000 INCHES NOMINAL IN, style_designator: NON-CIRCULAR W/SQUARE CORNERS, bolt_hole_centerline_to_nearest_edge_distance: 0.750 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-108-9247, 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
99503
NSN: 3110-00-108-9247
FSC: 3110
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
materialSTEEL
hole_diameter1.000 INCHES NOMINAL IN
overall_width1.500 INCHES NOMINAL IN
overall_length3.000 INCHES NOMINAL IN
style_designatorNON-CIRCULAR W/SQUARE CORNERS
bolt_hole_quantity2
bolt_hole_centerline_to_nearest_edge_distance0.750 INCHES NOMINAL IN
outside_edge_to_bolt_hole_center_distance_along_length0.625 INCHES NOMINAL IN
center_to_center_distance_between_bolt_holes_along_length1.750 INCHES NOMINAL IN
NSN3110-00-108-9247
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 99503 · 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 28
12-1874-3-28Interchangeable
interchangeable cross-reference
interchangeable
7-954-9-26Interchangeable
interchangeable cross-reference
interchangeable
101542Interchangeable
interchangeable cross-reference
interchangeable
PA300-281Interchangeable
interchangeable cross-reference
interchangeable
1844Interchangeable
interchangeable cross-reference
interchangeable
VA-305BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 99503?
99503 is a BEARING,BALL,ANNULAR.
What parts can replace 99503?
There are 28 known substitutes for 99503: 12-1874-3-28, 7-954-9-26, 101542 and 25 more. Substitute compatibility should be verified for your specific system.
Is 99503 still available?
99503 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