PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 258-30
258-30 ✓ 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 MICROCIRCUIT,DIGITAL is a the manufacturer industrial component. Key specifications include diameter: 1.5020 INCHES NOMINAL IN, corner_shape: SQUARE ALL CORNERS, outside_diameter: 2.1770 INCHES NOMINAL IN, style_designator: ROUND, overall_thickness: 0.0930 INCHES NOMINAL IN, center_hole_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-151-8095, 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
258-30
NSN: 3110-00-151-8095
FSC: 3110
CAGE: 14418 — UNISYS CORP DEFENSE SYSTEMS C S D FIELD ENGINEERING (USA)
SPECIFICATIONS
diameter1.5020 INCHES NOMINAL IN
corner_shapeSQUARE ALL CORNERS
outside_diameter2.1770 INCHES NOMINAL IN
style_designatorROUND
overall_thickness0.0930 INCHES NOMINAL IN
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN3110-00-151-8095
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 258-30 · 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
•
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
•
LUBRICATION MATERIAL: GREASE
•
FLANGE OUTSIDE DIAMETER: 0.6870 INCHES NOMINAL IN
•
OUTER RING WIDTH: 0.2260 INCHES NOMINAL IN
•
FLANGE WIDTH: 0.0420 INCHES NOMINAL IN
•
SURFACE FINISH: GROUND
•
INNER RING WIDTH: 0.2490 INCHES MINIMUM AND 0.2510 INCHES MAXIMUM IN
•
INTERNAL CLEARANCE: 0.0002 INCHES MINIMUM RADIAL AND 0.0006 INCHES MAXIMUM RADIAL IN
TECHNICAL CHARACTERISTICS (FLIS)
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
LUBRICATION MATERIALGREASE
FLANGE OUTSIDE DIAMETER0.6870 INCHES NOMINAL IN
OUTER RING WIDTH0.2260 INCHES NOMINAL IN
FLANGE WIDTH0.0420 INCHES NOMINAL IN
SURFACE FINISHGROUND
INNER RING WIDTH0.2490 INCHES MINIMUM AND 0.2510 INCHES MAXIMUM IN
INTERNAL CLEARANCE0.0002 INCHES MINIMUM RADIAL AND 0.0006 INCHES MAXIMUM RADIAL IN
SPECIAL FEATURESBORE CORNER CHAMFERED0.0100 IN. BY 45 DEG AND SHIELDS ARE REMOVABLE IN
BORE DIAMETER0.2500 INCHES MINIMUM AND 0.2503 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
200025Interchangeable
interchangeable cross-reference
interchangeable
200-365Interchangeable
interchangeable cross-reference
interchangeable
760-1802 STYLE 333Interchangeable
interchangeable cross-reference
interchangeable
333-7/8Interchangeable
interchangeable cross-reference
interchangeable
251-4Interchangeable
interchangeable cross-reference
interchangeable
F4DDE5116Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 258-30?
258-30 is a MICROCIRCUIT,DIGITAL.
What parts can replace 258-30?
There are 29 known substitutes for 258-30: 200025, 200-365, 760-1802 STYLE 333 and 26 more. Substitute compatibility should be verified for your specific system.
Is 258-30 still available?
258-30 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