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Technical Data Sheet
PartsTable / COMPONENT / A10731
A10731 ✓ 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

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, coil_quantity: 10-1/2, inside_diameter: 1.875 INCHES NOMINAL IN, style_designator: CYLINDRICAL, surface_treatment: NICKEL OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-293-8120, 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
A10731
NSN: 3110-00-293-8120
FSC: 3110
CAGE: 04643 — COMTEC INFORMATION SYSTEMS INC DIGITRONICS DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
coil_quantity10-1/2
inside_diameter1.875 INCHES NOMINAL IN
style_designatorCYLINDRICAL
surface_treatmentNICKEL OVERALL
spring_free_length5.688 INCHES NOMINAL IN
coil_helix_directionRIGHT-HAND OR LEFT-HAND
spring_free_outside_diameter2.229 INCHES NOMINAL IN
NSN3110-00-293-8120
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: A10731 · 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: 0.8750 INCHES NOMINAL IN
•
BORE DIAMETER: 0.3750 INCHES NOMINAL IN
•
LUBRICATION MATERIAL: GREASE
•
LOAD DIRECTION: RADIAL
•
SURFACE FINISH: GROUND
•
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-PRF-23827 MIL SPEC SINGLE MATERIAL RESPONSE
•
BORE SHAPE: STRAIGHT
•
RETAINER FABRICATION METHOD: PRESSED
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL OUTSIDE DIAMETER0.8750 INCHES NOMINAL IN
BORE DIAMETER0.3750 INCHES NOMINAL IN
LUBRICATION MATERIALGREASE
LOAD DIRECTIONRADIAL
SURFACE FINISHGROUND
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-PRF-23827 MIL SPEC SINGLE MATERIAL RESPONSE
BORE SHAPESTRAIGHT
RETAINER FABRICATION METHODPRESSED
SHIELD QUANTITY2
STANDARD TOLERANCE DESIGNATIONABEC NO.3
VERIFIED SUBSTITUTES & CROSS-REFERENCES 33
713485Interchangeable
interchangeable cross-reference
interchangeable
RL3196Interchangeable
interchangeable cross-reference
interchangeable
S3SFFMILG18709Interchangeable
interchangeable cross-reference
interchangeable
9197-9-912Interchangeable
interchangeable cross-reference
interchangeable
AS3KDDFS160Interchangeable
interchangeable cross-reference
interchangeable
SS77R6XR1MILG3278Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A10731?
A10731 is a BEARING,BALL,ANNULAR.
What parts can replace A10731?
There are 33 known substitutes for A10731: 713485, RL3196, S3SFFMILG18709 and 30 more. Substitute compatibility should be verified for your specific system.
Is A10731 still available?
A10731 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