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Technical Data Sheet
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12154K — Technical Data Sheet

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— · 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 ROLLER,BEARING is a the manufacturer industrial component. Key specifications include overall_length: 1.1250 INCHES NOMINAL IN, overall_outside_diameter: 2.1250 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 3110-00-158-8610, 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
12154K
NSN: 3110-00-158-8610
FSC: 3110
CAGE: 29690 — CORRECT MFG CORP (USA)
SPECIFICATIONS
overall_length1.1250 INCHES NOMINAL IN
special_featuresMAJOR COMPONENTS: CAGE AND ROLLERS; SHAFT DIAMETER: 1.5000 INCHES; DESIGN FORM: SINGLE ROW; ROLLER TYPE: SPIRAL; MEETS AFBMA JOURNAL BEARING TOLERANCES IN
overall_outside_diameter2.1250 INCHES NOMINAL IN
NSN3110-00-158-8610
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 12154K · 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
•
OVERALL OUTSIDE DIAMETER: 2.1250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL OUTSIDE DIAMETER2.1250 INCHES NOMINAL IN
OVERALL LENGTH1.1250 INCHES NOMINAL IN
SPECIAL FEATURESMAJOR COMPONENTS: CAGE AND ROLLERS; SHAFT DIAMETER: 1.5000 INCHES; DESIGN FORM: SINGLE ROW; ROLLER TYPE: SPIRAL; MEETS AFBMA JOURNAL BEARING TOLERANCES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
C1-3InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
5026-8InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
DCF-2K-1/2WInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
023-0009InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
RNC70K2001FSInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
RN70D2431FInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12154K?
12154K is a ROLLER,BEARING.
What parts can replace 12154K?
There are 21 known substitutes for 12154K: C1-3, 5026-8, DCF-2K-1/2W and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 12154K?
12154K is cataloged in the Federal Logistics Information System under NSN 3110-00-158-8610. 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: September 2026