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Technical Data Sheet
PartsTable / COMPONENT / 261685
261685 ✓ 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 COMP W110 OVERALL, first_end_style: CHAMFERED, hardness_rating: 44.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM OVERALL, surface_treatment: CADMIUM OVERALL, pin_overall_length: 0.880 INCHES MINIMUM AND 0.900 INCHES MAXIMUM IN, pin_overall_diameter: 0.1560 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0208, 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
261685
NSN: 3110-00-100-0208
FSC: 3110
CAGE: 01957 — ACF INDUSTRIES INC (USA)
SPECIFICATIONS
materialSTEEL COMP W110 OVERALL
first_end_styleCHAMFERED
hardness_rating44.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM OVERALL
surface_treatmentCADMIUM OVERALL
pin_overall_length0.880 INCHES MINIMUM AND 0.900 INCHES MAXIMUM IN
pin_overall_diameter0.1560 INCHES NOMINAL IN
first_end_taper_angle45.0 DEGREES NOMINAL
first_end_taper_length0.010 INCHES NOMINAL IN
material_document_and_classificationQQ-T-580,CL FS-W1-10 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
second_end_relationship_with_first_endIDENTICAL
NSN3110-00-100-0208
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 261685 · 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
•
BORE DIAMETER: 1.5748 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.1406 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NORMAL ANGLE
•
CONE WIDTH: 0.8820 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
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
TECHNICAL CHARACTERISTICS (FLIS)
BORE DIAMETER1.5748 INCHES NOMINAL IN
CONE CORNER RADIUS0.1406 INCHES NOMINAL IN
STYLE DESIGNATORNORMAL ANGLE
CONE WIDTH0.8820 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
S9-2Interchangeable
interchangeable cross-reference
interchangeable
592Interchangeable
interchangeable cross-reference
interchangeable
298529Interchangeable
interchangeable cross-reference
interchangeable
706610Interchangeable
interchangeable cross-reference
interchangeable
1539287Interchangeable
interchangeable cross-reference
interchangeable
5591548Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 261685?
261685 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace 261685?
There are 25 known substitutes for 261685: S9-2, 592, 298529 and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 261685?
261685 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0208. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026