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Technical Data Sheet
PartsTable / COMPONENT / 38950-00903-103
38950-00903-103 ✓ 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,AIRFRAME is a the manufacturer industrial component. Key specifications include material: STEEL OUTER RING, bore_diameter: 0.2500 INCHES NOMINAL IN, alignment_type: SELF-ALIGNING, load_direction: RADIAL, inner_ring_width: 0.4840 INCHES NOMINAL IN, outer_ring_width: 0.3350 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-142-6571, 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
38950-00903-103
NSN: 3110-00-142-6571
FSC: 3110
CAGE: 3NPS1 — RBC AIRCRAFT PRODUCTS, INC. (USA)
SPECIFICATIONS
materialSTEEL OUTER RING
bore_diameter0.2500 INCHES NOMINAL IN
seal_quantity2
alignment_typeSELF-ALIGNING
load_directionRADIAL
inner_ring_width0.4840 INCHES NOMINAL IN
outer_ring_width0.3350 INCHES NOMINAL IN
special_featuresSEAL TO BE 10 DEG SELF ALINGNMENT IN EITHER DIRECTION,40 TO 50 PCT FULL OF SPECIFIED LUBRICANT,0.4400 IN. OZ MAX STARTING TORQUE IN
bearing_seal_typeCONTACT
surface_treatmentCADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES
lubrication_materialGREASE
self-alignment_locationINTERNAL
NSN3110-00-142-6571
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 38950-00903-103 · 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: 0.9014 INCHES NOMINAL IN
•
INNER RING WIDTH: 0.4840 INCHES NOMINAL IN
•
BEARING SEAL TYPE: CONTACT
•
LUBRICATION MATERIAL: GREASE
•
SELF-ALIGNMENT LOCATION: INTERNAL
•
LOAD DIRECTION: RADIAL
•
ALIGNMENT TYPE: SELF-ALIGNING
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL OUTSIDE DIAMETER0.9014 INCHES NOMINAL IN
INNER RING WIDTH0.4840 INCHES NOMINAL IN
BEARING SEAL TYPECONTACT
LUBRICATION MATERIALGREASE
SPECIAL FEATURESSEAL TO BE 10 DEG SELF ALINGNMENT IN EITHER DIRECTION,40 TO 50 PCT FULL OF SPECIFIED LUBRICANT,0.4400 IN. OZ MAX STARTING TORQUE IN
SELF-ALIGNMENT LOCATIONINTERNAL
LOAD DIRECTIONRADIAL
ALIGNMENT TYPESELF-ALIGNING
OUTER RING WIDTH0.3350 INCHES NOMINAL IN
SEAL QUANTITY2
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
MKSP4.2TSInterchangeable
interchangeable cross-reference
interchangeable
MKSP4FS464Interchangeable
interchangeable cross-reference
interchangeable
AS27645Interchangeable
interchangeable cross-reference
interchangeable
MKSP4Interchangeable
Same NIIN cross-reference
interchangeable
3110PL1960140Interchangeable
Same NIIN cross-reference
interchangeable
MKSP4A1173Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 38950-00903-103?
38950-00903-103 is a BEARING,BALL,AIRFRAME.
What parts can replace 38950-00903-103?
There are 6 known substitutes for 38950-00903-103: MKSP4.2TS, MKSP4FS464, AS27645 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 38950-00903-103?
38950-00903-103 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-142-6571. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026