PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 258777
258777 ✓ 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

CONE AND ROLLERS,TAPERED ROLLER. Key specifications include material: STEEL, first_leg_style: END RADIUS, second_leg_style: END RADIUS, style_designator: OFFSET ANGLE, mounting_hole_type: PLAIN, first_leg_thickness: 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0222, 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
258777
NSN: 3110-00-100-0222
FSC: 3110
CAGE: 01957 — ACF INDUSTRIES INC (USA)
SPECIFICATIONS
materialSTEEL
first_leg_styleEND RADIUS
second_leg_styleEND RADIUS
style_designatorOFFSET ANGLE
mounting_hole_typePLAIN
first_leg_thickness0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
first_leg_slot_width0.280 INCHES NOMINAL IN
second_leg_thickness0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
first_leg_slot_length0.400 INCHES NOMINAL IN
second_leg_hole_diameter0.161 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
first_leg_hole_arrangement_styleONE SLOT
second_leg_hole_arrangement_styleTHREE HOLES
NSN3110-00-100-0222
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 258777 · 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
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
VERIFIED SUBSTITUTES & CROSS-REFERENCES 32
121458Interchangeable
interchangeable cross-reference
interchangeable
WA39Interchangeable
interchangeable cross-reference
interchangeable
HY20950Interchangeable
interchangeable cross-reference
interchangeable
6233Interchangeable
interchangeable cross-reference
interchangeable
JJC99880Interchangeable
interchangeable cross-reference
interchangeable
916-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 258777?
258777 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace 258777?
There are 32 known substitutes for 258777: 121458, WA39, HY20950 and 29 more. Substitute compatibility should be verified for your specific system.
Is 258777 still available?
258777 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