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Technical Data Sheet
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204123-24 — 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 COMP 440C OVERALL, bore_shape: STRAIGHT, flange_width: 0.0210 INCHES MINIMUM AND 0.0230 INCHES MAXIMUM IN, bore_diameter: 0.2498 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN, overall_width: 0.1240 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN, load_direction: RADIAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 3110-01-340-7012, 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
204123-24
NSN: 3110-01-340-7012
FSC: 3110
CAGE: 50294 — NEW HAMPSHIRE BALL BEARINGS INC DIV PRECISION DIVISION (USA)
SPECIFICATIONS
materialSTEEL COMP 440C OVERALL
bore_shapeSTRAIGHT
flange_width0.0210 INCHES MINIMUM AND 0.0230 INCHES MAXIMUM IN
bore_diameter0.2498 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
overall_width0.1240 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN
load_directionRADIAL
surface_finishGROUND
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
flange_outside_diameter0.4200 INCHES MINIMUM AND 0.4220 INCHES MAXIMUM IN
internal_fit-up_designationSTANDARD
outer_ring_outside_diameter0.3748 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
retainer_fabrication_methodPRESSED
NSN3110-01-340-7012
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 204123-24 · 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
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
MATERIAL: STEEL COMP 440C OVERALL
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
SURFACE FINISH: GROUND
•
FLANGE OUTSIDE DIAMETER: 0.4200 INCHES MINIMUM AND 0.4220 INCHES MAXIMUM IN
•
BORE DIAMETER: 0.2498 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
•
FLANGE WIDTH: 0.0210 INCHES MINIMUM AND 0.0230 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
INTERNAL FIT-UP DESIGNATIONSTANDARD
MATERIALSTEEL COMP 440C OVERALL
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
SURFACE FINISHGROUND
FLANGE OUTSIDE DIAMETER0.4200 INCHES MINIMUM AND 0.4220 INCHES MAXIMUM IN
OVERALL WIDTH0.1240 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN
BORE DIAMETER0.2498 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
FLANGE WIDTH0.0210 INCHES MINIMUM AND 0.0230 INCHES MAXIMUM IN
BORE SHAPESTRAIGHT
RETAINER FABRICATION METHODPRESSED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
1841 2-1/2X1/32X7/8InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
59-10001InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
326-1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
101AInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
B210InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
10-0130-019BInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 204123-24?
204123-24 is a BEARING,BALL,ANNULAR.
What parts can replace 204123-24?
There are 12 known substitutes for 204123-24: 1841 2-1/2X1/32X7/8, 59-10001, 326-1 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 204123-24?
204123-24 is cataloged in the Federal Logistics Information System under NSN 3110-01-340-7012. 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: October 2026