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PartsTable / COMPONENT / S518C5P28LD
S518C5P28LD ✓ 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 COMP 440C OVERALL, bore_shape: STRAIGHT, bore_diameter: 0.1248 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN, overall_width: 0.1084 INCHES MINIMUM AND 0.1094 INCHES MAXIMUM IN, 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 (FLIS) under NSN 3110-01-099-7302, 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
S518C5P28LD
NSN: 3110-01-099-7302
FSC: 3110
CAGE: 40920 — MPB CORP DIV TIMKEN SUPER PRECISION (USA)
SPECIFICATIONS
materialSTEEL COMP 440C OVERALL
bore_shapeSTRAIGHT
bore_diameter0.1248 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN
overall_width0.1084 INCHES MINIMUM AND 0.1094 INCHES MAXIMUM IN
load_directionRADIAL
surface_finishGROUND
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
overall_outside_diameter0.3123 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN
retainer_fabrication_methodPRESSED
standard_tolerance_designationABEC NO.5
material_document_and_classificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN3110-01-099-7302
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: S518C5P28LD · 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
•
BORE SHAPE: STRAIGHT
•
RETAINER FABRICATION METHOD: PRESSED
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
MATERIAL: STEEL COMP 440C OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
LOAD DIRECTION: RADIAL
•
OVERALL OUTSIDE DIAMETER: 0.3123 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
BORE SHAPESTRAIGHT
RETAINER FABRICATION METHODPRESSED
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
MATERIALSTEEL COMP 440C OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
LOAD DIRECTIONRADIAL
OVERALL OUTSIDE DIAMETER0.3123 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN
OVERALL WIDTH0.1084 INCHES MINIMUM AND 0.1094 INCHES MAXIMUM IN
BORE DIAMETER0.1248 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN
STANDARD TOLERANCE DESIGNATIONABEC NO.5
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
3553Interchangeable
interchangeable cross-reference
interchangeable
10129507Interchangeable
interchangeable cross-reference
interchangeable
3553AMQInterchangeable
interchangeable cross-reference
interchangeable
S518C5Interchangeable
Same NIIN cross-reference
interchangeable
AV8K20Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S518C5P28LD?
S518C5P28LD is a BEARING,BALL,ANNULAR.
What parts can replace S518C5P28LD?
There are 5 known substitutes for S518C5P28LD: 3553, 10129507, 3553AMQ and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for S518C5P28LD?
S518C5P28LD is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-099-7302. 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