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Technical Data Sheet
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681946-1 — 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 COMP E52100 OUTER RING, bore_shape: STRAIGHT, bore_diameter: 1.5746 INCHES MINIMUM AND 1.5748 INCHES MAXIMUM IN, contact_angle: 25.0 DEGREES MAXIMUM, overall_width: 0.5856 INCHES MINIMUM AND 0.5906 INCHES MAXIMUM IN, load_direction: ANGULAR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 3110-01-025-6811, 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
681946-1
NSN: 3110-01-025-6811
FSC: 3110
CAGE: 43991 — FAG BEARINGS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP E52100 OUTER RING
bore_shapeSTRAIGHT
bore_diameter1.5746 INCHES MINIMUM AND 1.5748 INCHES MAXIMUM IN
contact_angle25.0 DEGREES MAXIMUM
overall_width0.5856 INCHES MINIMUM AND 0.5906 INCHES MAXIMUM IN
load_directionANGULAR
surface_finishGROUND
style_designatorCOUNTERBORED OUTER RING, NON-SEPARABLE
lubrication_materialLUBRICANT
overall_outside_diameter2.6769 INCHES MINIMUM AND 2.6772 INCHES MAXIMUM IN
internal_fit-up_designationLOOSE
retainer_fabrication_methodMACHINED
NSN3110-01-025-6811
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 681946-1 · 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
•
MATERIAL: STEEL COMP E52100 BALL
•
SURFACE FINISH: GROUND
•
CONTACT ANGLE: 25.0 DEGREES MAXIMUM
•
RETAINER FABRICATION METHOD: MACHINED
•
LUBRICATION MATERIAL: LUBRICANT
•
LOAD DIRECTION: ANGULAR
TECHNICAL CHARACTERISTICS
MATERIALSTEEL COMP E52100 BALL
MATERIALCOPPER ALLOY RETAINER
MATERIALSTEEL COMP E52100 OUTER RING
SURFACE FINISHGROUND
CONTACT ANGLE25.0 DEGREES MAXIMUM
RETAINER FABRICATION METHODMACHINED
LUBRICATION MATERIALLUBRICANT
LOAD DIRECTIONANGULAR
BORE SHAPESTRAIGHT
INTERNAL FIT-UP DESIGNATIONLOOSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
70266InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
13842InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
920011-16InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
126SI600InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MS25052-1AInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
B-13842InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 681946-1?
681946-1 is a BEARING,BALL,ANNULAR.
What parts can replace 681946-1?
There are 11 known substitutes for 681946-1: 70266, 13842, 920011-16 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 681946-1?
681946-1 is cataloged in the Federal Logistics Information System under NSN 3110-01-025-6811. 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: October 2026