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Technical Data Sheet
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R4SS3 ✓ 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 COMP 440A OVERALL A, bore_shape: STRAIGHT, bore_diameter: 0.2500 INCHES NOMINAL IN, overall_width: 0.1960 INCHES NOMINAL IN, alignment_type: RIGID, load_direction: RADIAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-435-8919, 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
R4SS3
NSN: 3110-00-435-8919
FSC: 3110
CAGE: 70854 — SCHAEFFLER AEROSPACE USA CORP DIV SCHAEFFLER AEROSPACE USA CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 440A OVERALL A
bore_shapeSTRAIGHT
bore_diameter0.2500 INCHES NOMINAL IN
overall_width0.1960 INCHES NOMINAL IN
alignment_typeRIGID
load_directionRADIAL
surface_finishUNGROUND
shield_quantity2
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
lubrication_materialGREASE
end_item_identificationF-16 ACFT
overall_outside_diameter0.6250 INCHES NOMINAL IN
NSN3110-00-435-8919
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: R4SS3 · 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
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
BORE SHAPE: STRAIGHT
•
SHIELD QUANTITY: 2
•
SURFACE FINISH: GROUND
•
RETAINER FABRICATION METHOD: PRESSED
•
LUBRICATION MATERIAL: GREASE
•
LOAD DIRECTION: RADIAL
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH0.1960 INCHES NOMINAL IN
INTERNAL FIT-UP DESIGNATIONSTANDARD
BORE SHAPESTRAIGHT
SHIELD QUANTITY2
SURFACE FINISHGROUND
RETAINER FABRICATION METHODPRESSED
LUBRICATION MATERIALGREASE
LOAD DIRECTIONRADIAL
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
MATERIALSTEEL COMP 1008 OR STEEL COMP 1010 SHIELD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
MS1KDD7Interchangeable
interchangeable cross-reference
interchangeable
RS77R4DZB5EInterchangeable
interchangeable cross-reference
interchangeable
901714-2Interchangeable
interchangeable cross-reference
interchangeable
13073-1Interchangeable
interchangeable cross-reference
interchangeable
302-1003P5Interchangeable
interchangeable cross-reference
interchangeable
R4PPB-3LTG75Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R4SS3?
R4SS3 is a BEARING,BALL,ANNULAR.
What parts can replace R4SS3?
There are 17 known substitutes for R4SS3: MS1KDD7, RS77R4DZB5E, 901714-2 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R4SS3?
R4SS3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-435-8919. 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: July 2026