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Technical Data Sheet
PartsTable / COMPONENT / 253-221-000-300
253-221-000-300 ✓ 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 CORROSION RESISTING OVERALL, bore_shape: STRAIGHT, flange_width: 0.0420 INCHES NOMINAL IN, bore_diameter: 0.2500 INCHES NOMINAL IN, overall_width: 0.1960 INCHES NOMINAL 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 (FLIS) under NSN 3110-00-255-0017, 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
253-221-000-300
NSN: 3110-00-255-0017
FSC: 3110
CAGE: 36180 — ULTRA ELECTRONICS MARITIME SYSTEMS INC DIV SUBSIDIARY OF ULTRA ELECTRONICS HOLDINGS LIMITED (CAN)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
bore_shapeSTRAIGHT
flange_width0.0420 INCHES NOMINAL IN
bore_diameter0.2500 INCHES NOMINAL IN
overall_width0.1960 INCHES NOMINAL IN
load_directionRADIAL
surface_finishGROUND
shield_quantity2
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
internal_clearance0.0003 INCHES MINIMUM RADIAL AND 0.0005 INCHES MAXIMUM RADIAL IN
lubrication_materialOIL
flange_outside_diameter0.6900 INCHES NOMINAL IN
NSN3110-00-255-0017
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 253-221-000-300 · 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
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.5
•
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-L-6085 MIL SPEC SINGLE MATERIAL RESPONSE
•
OUTER RING OUTSIDE DIAMETER: 0.6250 INCHES NOMINAL IN
•
LUBRICATION MATERIAL: OIL
•
BORE SHAPE: STRAIGHT
•
SURFACE FINISH: GROUND
•
SHIELD QUANTITY: 2
•
LOAD DIRECTION: RADIAL
TECHNICAL CHARACTERISTICS (FLIS)
STANDARD TOLERANCE DESIGNATIONABEC NO.5
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-L-6085 MIL SPEC SINGLE MATERIAL RESPONSE
OUTER RING OUTSIDE DIAMETER0.6250 INCHES NOMINAL IN
LUBRICATION MATERIALOIL
BORE SHAPESTRAIGHT
SURFACE FINISHGROUND
SHIELD QUANTITY2
LOAD DIRECTIONRADIAL
RETAINER FABRICATION METHODPRESSED
INTERNAL CLEARANCE0.0003 INCHES MINIMUM RADIAL AND 0.0005 INCHES MAXIMUM RADIAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
P499031126Interchangeable
interchangeable cross-reference
interchangeable
6-1-746-7Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 253-221-000-300?
253-221-000-300 is a BEARING,BALL,ANNULAR.
What parts can replace 253-221-000-300?
There are 2 known substitutes for 253-221-000-300: P499031126, 6-1-746-7. Substitute compatibility should be verified for your specific system.
What is the NSN for 253-221-000-300?
253-221-000-300 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-255-0017. 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