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Technical Data Sheet
PartsTable / COMPONENT / RL3988-65
RL3988-65 ✓ 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,ROLLER,THRUST is a the manufacturer industrial component. Key specifications include material: STEEL ROLLER, bore_diameter: 3.0000 INCHES NOMINAL IN, alignment_type: RIGID, overall_height: 1.3750 INCHES NOMINAL IN, surface_finish: GROUND, style_designator: FLAT RACE SURFACE, CYLINDRICAL ROLLERS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-1483, 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
RL3988-65
NSN: 3110-00-156-1483
FSC: 3110
CAGE: 81010 — DRESSER/MARION DIV (USA)
SPECIFICATIONS
materialSTEEL ROLLER
bore_diameter3.0000 INCHES NOMINAL IN
alignment_typeRIGID
overall_height1.3750 INCHES NOMINAL IN
surface_finishGROUND
style_designatorFLAT RACE SURFACE, CYLINDRICAL ROLLERS
overall_outside_diameter6.0000 INCHES NOMINAL IN
standard_tolerance_designationABEC NO.1
thrust_directional_capability_designationSINGLE
NSN3110-00-156-1483
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: RL3988-65 · 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
•
SURFACE FINISH: GROUND
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
BORE DIAMETER: 3.0000 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY RETAINER
•
OVERALL OUTSIDE DIAMETER: 6.0000 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLAT RACE SURFACE, CYLINDRICAL ROLLERS
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE FINISHGROUND
STANDARD TOLERANCE DESIGNATIONABEC NO.1
BORE DIAMETER3.0000 INCHES NOMINAL IN
MATERIALCOPPER ALLOY RETAINER
MATERIALSTEEL WASHER
OVERALL OUTSIDE DIAMETER6.0000 INCHES NOMINAL IN
STYLE DESIGNATORFLAT RACE SURFACE, CYLINDRICAL ROLLERS
OVERALL HEIGHT1.3750 INCHES NOMINAL IN
MATERIALSTEEL ROLLER
THRUST DIRECTIONAL CAPABILITY DESIGNATIONSINGLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
T30Interchangeable
interchangeable cross-reference
interchangeable
CA0570-001Interchangeable
interchangeable cross-reference
interchangeable
K50345181Interchangeable
interchangeable cross-reference
interchangeable
E49Interchangeable
interchangeable cross-reference
interchangeable
CX5422Interchangeable
interchangeable cross-reference
interchangeable
W3-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RL3988-65?
RL3988-65 is a BEARING,ROLLER,THRUST.
What parts can replace RL3988-65?
There are 25 known substitutes for RL3988-65: T30, CA0570-001, K50345181 and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for RL3988-65?
RL3988-65 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-1483. 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