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Technical Data Sheet
PartsTable / COMPONENT / 450939
450939 ✓ 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 OVERALL, bore_shape: STRAIGHT, bore_diameter: 0.9839 INCHES MINIMUM AND 0.9843 INCHES MAXIMUM IN, overall_width: 0.4674 INCHES MINIMUM AND 0.4724 INCHES MAXIMUM IN, load_direction: RADIAL, surface_finish: GROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-294-9596, 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
450939
NSN: 3110-00-294-9596
FSC: 3110
CAGE: 52676 — SKF USA INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter0.9839 INCHES MINIMUM AND 0.9843 INCHES MAXIMUM IN
overall_width0.4674 INCHES MINIMUM AND 0.4724 INCHES MAXIMUM IN
load_directionRADIAL
surface_finishGROUND
special_featuresINTERNAL CLEARANCE MEASURED UNDER 3 LB LOAD LBS
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
internal_clearance0.0001 INCHES MINIMUM RADIAL AND 0.0004 INCHES MAXIMUM RADIAL AND 0.0030 INCHES MINIMUM AXIAL AND 0.0045 INCHES MAXIMUM AXIAL IN
overall_outside_diameter1.8499 INCHES MINIMUM AND 1.8504 INCHES MAXIMUM IN
retainer_fabrication_methodPRESSED
standard_tolerance_designationABEC NO.1
NSN3110-00-294-9596
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 450939 · 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
•
OVERALL OUTSIDE DIAMETER: 1.8499 INCHES MINIMUM AND 1.8504 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
MATERIAL: STEEL OVERALL
•
BORE SHAPE: STRAIGHT
•
RETAINER FABRICATION METHOD: PRESSED
•
LOAD DIRECTION: RADIAL
•
INTERNAL CLEARANCE: 0.0001 INCHES MINIMUM RADIAL AND 0.0004 INCHES MAXIMUM RADIAL AND 0.0030 INCHES MINIMUM AXIAL AND 0.0045 INCHES MAXIMUM AXIAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL OUTSIDE DIAMETER1.8499 INCHES MINIMUM AND 1.8504 INCHES MAXIMUM IN
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
MATERIALSTEEL OVERALL
BORE SHAPESTRAIGHT
RETAINER FABRICATION METHODPRESSED
LOAD DIRECTIONRADIAL
OVERALL WIDTH0.4674 INCHES MINIMUM AND 0.4724 INCHES MAXIMUM IN
INTERNAL CLEARANCE0.0001 INCHES MINIMUM RADIAL AND 0.0004 INCHES MAXIMUM RADIAL AND 0.0030 INCHES MINIMUM AXIAL AND 0.0045 INCHES MAXIMUM AXIAL IN
SURFACE FINISHGROUND
STANDARD TOLERANCE DESIGNATIONABEC NO.1
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
D4-71901Interchangeable
interchangeable cross-reference
interchangeable
6005XInterchangeable
interchangeable cross-reference
interchangeable
R38P-97Interchangeable
interchangeable cross-reference
interchangeable
450939Interchangeable
interchangeable cross-reference
interchangeable
3L05DX1273Interchangeable
Same NIIN cross-reference
interchangeable
6784727Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 450939?
450939 is a BEARING,BALL,ANNULAR.
What parts can replace 450939?
There are 10 known substitutes for 450939: D4-71901, 6005X, R38P-97 and 7 more. Substitute compatibility should be verified for your specific system.
Is 450939 still available?
450939 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