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MMS5KDB — BEARING,BALL,DUPLEX

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

MMS5KDB: BEARING,BALL,DUPLEX.

The BEARING,BALL,DUPLEX is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, load_direction: RADIAL, surface_finish: GROUND, bearing_preload_designation: LIGHT, retainer_fabrication_method: PRESSED, standard_tolerance_designation: ABEC NO.7. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-198-2058, 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
MMS5KDB
NSN: 3110-00-198-2058
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 21335 — TIMKEN CO DIV THE TIMKEN COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
load_directionRADIAL
surface_finishGROUND
bearing_preload_designationLIGHT
retainer_fabrication_methodPRESSED
standard_tolerance_designationABEC NO.7
NSN3110-00-198-2058
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: MMS5KDB · 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
•
RETAINER FABRICATION METHOD: PRESSED
•
SURFACE FINISH: GROUND
•
BEARING PRELOAD DESIGNATION: LIGHT
•
LOAD DIRECTION: RADIAL
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.7
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODPRESSED
SURFACE FINISHGROUND
BEARING PRELOAD DESIGNATIONLIGHT
LOAD DIRECTIONRADIAL
STANDARD TOLERANCE DESIGNATIONABEC NO.7
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
1027083Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MMS5KDB?
MMS5KDB is a BEARING,BALL,DUPLEX.
What parts can replace MMS5KDB?
There is 1 known substitute for MMS5KDB: 1027083. Substitute compatibility should be verified for your specific system.
What is the NSN for MMS5KDB?
MMS5KDB is cataloged in the U.S. Government catalog under NSN 3110-00-198-2058. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.