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Technical Data Sheet
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L312 — 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 BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include MATERIAL: STEEL OVERALL, BORE SHAPE: STRAIGHT, BORE DIAMETER: 60.00 MILLIMETERS NOMINAL MM, OVERALL WIDTH: 31.00 MILLIMETERS NOMINAL MM, LOAD DIRECTION: ANGULAR, SURFACE FINISH: GROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 3110-00-156-5107, 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
L312
NSN: 3110-00-156-5107
FSC: 3110
CAGE: 21335 — TIMKEN CO DIV THE TIMKEN COMPANY (USA)
SPECIFICATIONS
MATERIALSTEEL OVERALL
BORE SHAPESTRAIGHT
BORE DIAMETER60.00 MILLIMETERS NOMINAL MM
OVERALL WIDTH31.00 MILLIMETERS NOMINAL MM
LOAD DIRECTIONANGULAR
SURFACE FINISHGROUND
STYLE DESIGNATORNON-SEPARABLE
OVERALL OUTSIDE DIAMETER130.00 MILLIMETERS NOMINAL MM
INTERNAL FIT-UP DESIGNATIONSTANDARD
NONDEFINITIVE SPEC/STD DATA123GR00 TYPE
RETAINER FABRICATION METHODPRESSED
STANDARD TOLERANCE DESIGNATIONABEC NO.1
NSN3110-00-156-5107
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: L312 · 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: 130.00 MILLIMETERS NOMINAL MM
•
BORE SHAPE: STRAIGHT
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
STYLE DESIGNATOR: NON-SEPARABLE
•
NONDEFINITIVE SPEC/STD DATA: 123GR00 TYPE
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
OVERALL OUTSIDE DIAMETER130.00 MILLIMETERS NOMINAL MM
BORE SHAPESTRAIGHT
INTERNAL FIT-UP DESIGNATIONSTANDARD
STYLE DESIGNATORNON-SEPARABLE
NONDEFINITIVE SPEC/STD DATA123GR00 TYPE
NONDEFINITIVE SPEC/STD DATA123GR00 TYPE
MATERIALSTEEL OVERALL
STYLE DESIGNATORNON-SEPARABLE
INTERNAL FIT-UP CONTACT ANGULAR DIRECTIONINWARD CONVERGENT
INTERNAL FIT-UP DESIGNATIONSTANDARD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
WE1866InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
14252InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
142452InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
89-12VInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
27715InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
42315InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is L312?
L312 is a BEARING,BALL,ANNULAR.
What parts can replace L312?
There are 19 known substitutes for L312: WE1866, 14252, 142452 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for L312?
L312 is cataloged in the Federal Logistics Information System under NSN 3110-00-156-5107. 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