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Technical Data Sheet
PartsTable / COMPONENT / 1B3927
1B3927 ✓ 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 OVERALL, cup_width: 0.6563 INCHES NOMINAL IN, cone_width: 0.8125 INCHES NOMINAL IN, bore_diameter: 3.5000 INCHES NOMINAL IN, overall_width: 0.8125 INCHES NOMINAL IN, alignment_type: RIGID. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0661, 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
1B3927
NSN: 3110-00-100-0661
FSC: 3110
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cup_width0.6563 INCHES NOMINAL IN
cone_width0.8125 INCHES NOMINAL IN
bore_diameter3.5000 INCHES NOMINAL IN
overall_width0.8125 INCHES NOMINAL IN
alignment_typeRIGID
standout_width0.1563 INCHES NOMINAL IN
outside_diameter4.7500 INCHES NOMINAL IN
special_featuresDUTY CL HM SERIES
style_designatorSTRAIGHT BORE, NORMAL ANGLE
cone_corner_radius0.0620 INCHES NOMINAL IN
lubrication_materialGREASE
NSN3110-00-100-0661
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1B3927 · 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 25
38331Interchangeable
interchangeable cross-reference
interchangeable
113249Interchangeable
interchangeable cross-reference
interchangeable
316-970102-2Interchangeable
interchangeable cross-reference
interchangeable
08P10847-2400Interchangeable
interchangeable cross-reference
interchangeable
C6649PC30Interchangeable
interchangeable cross-reference
interchangeable
M2851PC33Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1B3927?
1B3927 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace 1B3927?
There are 25 known substitutes for 1B3927: 38331, 113249, 316-970102-2 and 22 more. Substitute compatibility should be verified for your specific system.
Is 1B3927 still available?
1B3927 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