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Technical Data Sheet
PartsTable / COMPONENT / 1B5686
1B5686 ✓ 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 CUP,TAPERED ROLLER BEARING is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: STEEL OVERALL, overall_width: 0.8586 INCHES NOMINAL IN, outside_diameter: 3.5480 INCHES NOMINAL IN, style_designator: NORMAL ANGLE, backface_corner_radius: 0.0938 INCHES NOMINAL IN, standard_tolerance_designation: AFBMA CLASS 2. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0801, 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
1B5686
NSN: 3110-00-100-0801
FSC: 3110
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_width0.8586 INCHES NOMINAL IN
outside_diameter3.5480 INCHES NOMINAL IN
style_designatorNORMAL ANGLE
backface_corner_radius0.0938 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-100-0801
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1B5686 · 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: 0.0938 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NORMAL ANGLE
•
OUTSIDE DIAMETER: 3.5480 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)
BACKFACE CORNER RADIUS0.0938 INCHES NOMINAL IN
STYLE DESIGNATORNORMAL ANGLE
OUTSIDE DIAMETER3.5480 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
OVERALL WIDTH0.8586 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
40-140Interchangeable
interchangeable cross-reference
interchangeable
70231W1ITEM13Interchangeable
interchangeable cross-reference
interchangeable
70329W1ITEM8Interchangeable
interchangeable cross-reference
interchangeable
10492-1Interchangeable
interchangeable cross-reference
interchangeable
10492Interchangeable
interchangeable cross-reference
interchangeable
604-3-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1B5686?
1B5686 is a CUP,TAPERED ROLLER BEARING.
What parts can replace 1B5686?
There are 28 known substitutes for 1B5686: 40-140, 70231W1ITEM13, 70329W1ITEM8 and 25 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1B5686?
1B5686 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0801. 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