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Technical Data Sheet
PartsTable / COMPONENT / 1B4011
1B4011 ✓ 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 connection_type: UNTHREADED EXTERNAL HOSE SECOND END, nominal_thread_size: 0.375 INCHES FIRST END IN, end_item_identification: JSN WHIDBEY ISLAND CLASS LSD., thread_series_designator: NPT FIRST END, nominal_inside_diameter_hose_accommodated: 0.500 INCHES SECOND END 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 3110-00-100-3139, 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
1B4011
NSN: 3110-00-100-3139
FSC: 3110
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
connection_typeUNTHREADED EXTERNAL HOSE SECOND END
nominal_thread_size0.375 INCHES FIRST END IN
end_item_identificationJSN WHIDBEY ISLAND CLASS LSD.
thread_series_designatorNPT FIRST END
nominal_inside_diameter_hose_accommodated0.500 INCHES SECOND END IN
NSN3110-00-100-3139
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1B4011 · 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
•
CONE CORNER RADIUS: 0.1406 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
BORE DIAMETER: 1.1810 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NORMAL ANGLE
•
MATERIAL: STEEL OVERALL
•
CONE WIDTH: 0.7710 INCHES NOMINAL IN
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)
CONE CORNER RADIUS0.1406 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
BORE DIAMETER1.1810 INCHES NOMINAL IN
STYLE DESIGNATORNORMAL ANGLE
MATERIALSTEEL OVERALL
CONE WIDTH0.7710 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
150 21Interchangeable
interchangeable cross-reference
interchangeable
1340Interchangeable
interchangeable cross-reference
interchangeable
13321Interchangeable
interchangeable cross-reference
interchangeable
4X622Interchangeable
interchangeable cross-reference
interchangeable
P20275Interchangeable
interchangeable cross-reference
interchangeable
250793Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1B4011?
1B4011 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace 1B4011?
There are 25 known substitutes for 1B4011: 150 21, 1340, 13321 and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1B4011?
1B4011 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-3139. 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