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Technical Data Sheet
PartsTable / COMPONENT / 177039-12
177039-12 ✓ 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: 2.2500 INCHES NOMINAL IN, overall_width: 0.6875 INCHES NOMINAL IN, load_direction: RADIAL, surface_finish: GROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-554-3960, 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
177039-12
NSN: 3110-00-554-3960
FSC: 3110
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter2.2500 INCHES NOMINAL IN
overall_width0.6875 INCHES NOMINAL IN
load_directionRADIAL
surface_finishGROUND
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
overall_outside_diameter3.5625 INCHES NOMINAL IN
internal_fit-up_designationSTANDARD
retainer_fabrication_methodPRESSED
standard_tolerance_designationABEC NO.1
NSN3110-00-554-3960
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 177039-12 · 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
•
RETAINER FABRICATION METHOD: PRESSED
•
BORE DIAMETER: 2.2500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
MATERIAL: STEEL OVERALL
•
BORE SHAPE: STRAIGHT
•
LOAD DIRECTION: RADIAL
•
SURFACE FINISH: GROUND
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
TECHNICAL CHARACTERISTICS (FLIS)
RETAINER FABRICATION METHODPRESSED
BORE DIAMETER2.2500 INCHES NOMINAL IN
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
MATERIALSTEEL OVERALL
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
SURFACE FINISHGROUND
STANDARD TOLERANCE DESIGNATIONABEC NO.1
INTERNAL FIT-UP DESIGNATIONSTANDARD
OVERALL WIDTH0.6875 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
XLS23-4Interchangeable
interchangeable cross-reference
interchangeable
50572Interchangeable
interchangeable cross-reference
interchangeable
8914-60Interchangeable
Same NIIN cross-reference
interchangeable
XLS2 3/4Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 177039-12?
177039-12 is a BEARING,BALL,ANNULAR.
What parts can replace 177039-12?
There are 4 known substitutes for 177039-12: XLS23-4, 50572, 8914-60 and 1 more. Substitute compatibility should be verified for your specific system.
Is 177039-12 still available?
177039-12 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