PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 658998
658998 ✓ 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

OSCILLATOR,NONCRYSTAL CONTROLLED. Key specifications include material: STEEL OVERALL, overall_width: 0.6250 INCHES NOMINAL IN, alignment_type: RIGID, overall_height: 0.6820 INCHES MAXIMUM IN, surface_finish: GROUND, outside_diameter: 3.8125 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0302, 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
658998
NSN: 3110-00-100-0302
FSC: 3110
CAGE: 12603 — CLARK EQUIPMENT CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_width0.6250 INCHES NOMINAL IN
alignment_typeRIGID
overall_height0.6820 INCHES MAXIMUM IN
surface_finishGROUND
outside_diameter3.8125 INCHES NOMINAL IN
style_designatorNORMAL ANGLE
backface_corner_radius0.0312 INCHES NOMINAL IN
overall_outside_diameter2.7350 INCHES MINIMUM AND 2.7650 INCHES MAXIMUM IN
retainer_fabrication_methodPRESSED
standard_tolerance_designationAFBMA CLASS 2
thrust_directional_capability_designationSINGLE
NSN3110-00-100-0302
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 658998 · 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
•
BACKFACE CORNER RADIUS: 0.0312 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
STYLE DESIGNATOR: NORMAL ANGLE
•
OUTSIDE DIAMETER: 3.8125 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH0.6250 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.0312 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
STYLE DESIGNATORNORMAL ANGLE
OUTSIDE DIAMETER3.8125 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
3821Interchangeable
interchangeable cross-reference
interchangeable
14204Interchangeable
interchangeable cross-reference
interchangeable
73458Interchangeable
interchangeable cross-reference
interchangeable
32-50178-9Interchangeable
interchangeable cross-reference
interchangeable
203-5920-9Interchangeable
interchangeable cross-reference
interchangeable
382AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 658998?
658998 is a OSCILLATOR,NONCRYSTAL CONTROLLED.
What parts can replace 658998?
There are 23 known substitutes for 658998: 3821, 14204, 73458 and 20 more. Substitute compatibility should be verified for your specific system.
Is 658998 still available?
658998 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