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Technical Data Sheet
PartsTable / COMPONENT / C870381XBC
C870381XBC ✓ 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 SHIELD, bore_shape: STRAIGHT, bore_diameter: 8.00 MILLIMETERS NOMINAL MM, overall_width: 0.4060 INCHES NOMINAL IN, load_direction: RADIAL, surface_finish: GROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-3393, 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
C870381XBC
NSN: 3110-00-156-3393
FSC: 3110
CAGE: 7X677 — GENERAL MOTORS LLC DBA GENERAL MOTORS LLC (USA)
SPECIFICATIONS
materialSTEEL SHIELD
bore_shapeSTRAIGHT
bore_diameter8.00 MILLIMETERS NOMINAL MM
overall_width0.4060 INCHES NOMINAL IN
seal_quantity1
load_directionRADIAL
surface_finishGROUND
shield_quantity1
inner_ring_width0.3860 INCHES NOMINAL IN
outer_ring_width0.3150 INCHES NOMINAL IN
lubrication_materialGREASE
overall_outside_diameter22.00 MILLIMETERS NOMINAL MM
NSN3110-00-156-3393
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: C870381XBC · 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 SHIELD
•
SHIELD QUANTITY: 1
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
SURFACE FINISH: GROUND
•
INNER RING WIDTH: 0.3860 INCHES NOMINAL IN
•
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-3545 MIL SPEC SINGLE MATERIAL RESPONSE
•
OUTER RING WIDTH: 0.3150 INCHES NOMINAL IN
•
INTERNAL FIT-UP DESIGNATION: STANDARD
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL SHIELD
SHIELD QUANTITY1
STANDARD TOLERANCE DESIGNATIONABEC NO.1
SURFACE FINISHGROUND
INNER RING WIDTH0.3860 INCHES NOMINAL IN
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-3545 MIL SPEC SINGLE MATERIAL RESPONSE
OUTER RING WIDTH0.3150 INCHES NOMINAL IN
INTERNAL FIT-UP DESIGNATIONSTANDARD
BORE SHAPESTRAIGHT
LUBRICATION MATERIALGREASE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
PA1104HGInterchangeable
interchangeable cross-reference
interchangeable
1001-042Interchangeable
interchangeable cross-reference
interchangeable
73B10017Interchangeable
interchangeable cross-reference
interchangeable
45285Interchangeable
interchangeable cross-reference
interchangeable
B-28Interchangeable
interchangeable cross-reference
interchangeable
1781-0875Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C870381XBC?
C870381XBC is a BEARING,BALL,ANNULAR.
What parts can replace C870381XBC?
There are 27 known substitutes for C870381XBC: PA1104HG, 1001-042, 73B10017 and 24 more. Substitute compatibility should be verified for your specific system.
Is C870381XBC still available?
C870381XBC 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