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Technical Data Sheet
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7503ND — Technical Data Sheet

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— · 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, bore_shape: STRAIGHT, bore_diameter: 17.00 MILLIMETERS NOMINAL MM, overall_width: 12.0 MILLIMETERS NOMINAL MM, load_direction: RADIAL, surface_finish: GROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 3110-00-144-8782, 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
7503ND
NSN: 3110-00-144-8782
FSC: 3110
CAGE: 28873 — ITW FOOD EQUIPMENT GROUP LLC DBA HOBART SERVICE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter17.00 MILLIMETERS NOMINAL MM
overall_width12.0 MILLIMETERS NOMINAL MM
load_directionRADIAL
surface_finishGROUND
shield_quantity1
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
overall_outside_diameter40.00 MILLIMETERS NOMINAL MM
internal_fit-up_designationTIGHT
nondefinitive_spec/std_data111 TYPE AND 2 CLASS AND 00 GRADE
standard_tolerance_designationABEC NO.1
NSN3110-00-144-8782
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 7503ND · 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
•
DEPARTURE FROM CITED DESIGNATOR: AS MODIFIED BY INTERNAL FIT-UP DESIGNATION
•
BORE SHAPE: STRAIGHT
•
LOAD DIRECTION: RADIAL
•
OVERALL OUTSIDE DIAMETER: 40.00 MILLIMETERS NOMINAL MM
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
BORE DIAMETER: 17.00 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY INTERNAL FIT-UP DESIGNATION
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
OVERALL OUTSIDE DIAMETER40.00 MILLIMETERS NOMINAL MM
SURFACE FINISHGROUND
OVERALL WIDTH12.0 MILLIMETERS NOMINAL MM
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
BORE DIAMETER17.00 MILLIMETERS NOMINAL MM
STANDARD TOLERANCE DESIGNATIONABEC NO.1
SHIELD QUANTITY1
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
B2057InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
EF-1488A-0404InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
4-411-4InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
CMC-4-5511-04-04InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MIL-F-24787/2 VIII TYA 1/4-4InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
20622-4-4NAInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7503ND?
7503ND is a BEARING,BALL,ANNULAR.
What parts can replace 7503ND?
There are 23 known substitutes for 7503ND: B2057, EF-1488A-0404, 4-411-4 and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7503ND?
7503ND is cataloged in the Federal Logistics Information System under NSN 3110-00-144-8782. 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: September 2026