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S2128M5LY167DB25 — BEARING,BALL,DUPLEX

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

S2128M5LY167DB25: BEARING,BALL,DUPLEX.

The BEARING,BALL,DUPLEX is a the manufacturer industrial component. Key specifications include material: STEEL COMP 440C OUTER RING, bore_diameter: 1.3122 INCHES MINIMUM AND 1.3125 INCHES MAXIMUM IN, overall_width: 0.4900 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN, load_direction: ANGULAR, surface_finish: GROUND, special_features: OVER 25 DEG CONTACT ANGLE. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-049-4149, 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
S2128M5LY167DB25
NSN: 3110-01-049-4149
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 40920 — MPB CORP DIV TIMKEN SUPER PRECISION (USA)
SPECIFICATIONS
materialSTEEL COMP 440C OUTER RING
bore_diameter1.3122 INCHES MINIMUM AND 1.3125 INCHES MAXIMUM IN
overall_width0.4900 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
load_directionANGULAR
surface_finishGROUND
special_featuresOVER 25 DEG CONTACT ANGLE
style_designatorCOUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING
bearing_preload_rating25.0 POUNDS NOMINAL LBS
overall_outside_diameter1.7496 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM IN
retainer_fabrication_methodMACHINED
material_document_and_classificationUNABLE TO DECODE
lubrication_material_document_and_classificationMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
NSN3110-01-049-4149
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: S2128M5LY167DB25 · 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: MACHINED
•
BEARING PRELOAD RATING: 25.0 POUNDS NOMINAL LBS
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: COUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING
•
MATERIAL DOCUMENT AND CLASSIFICATION: UNABLE TO DECODE
•
OVERALL OUTSIDE DIAMETER: 1.7496 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM IN
•
LOAD DIRECTION: ANGULAR
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODMACHINED
BEARING PRELOAD RATING25.0 POUNDS NOMINAL LBS
SURFACE FINISHGROUND
STYLE DESIGNATORCOUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING
MATERIAL DOCUMENT AND CLASSIFICATIONUNABLE TO DECODE
OVERALL WIDTH0.4900 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER1.7496 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM IN
LOAD DIRECTIONANGULAR
SPECIAL FEATURESOVER 25 DEG CONTACT ANGLE
BORE DIAMETER1.3122 INCHES MINIMUM AND 1.3125 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES 5
SR542TC-4/235Reference document
Same NSN cross-reference
Reference document — Secondary reference
AVN542WICRDBFS160Reference document
Same NSN cross-reference
Reference document — Secondary reference
AVN542ICRDBFS160Reference document
Same NSN cross-reference
Reference document — Secondary reference
532185-4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
3TAR21-28UDBLY196Reference 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 S2128M5LY167DB25?
S2128M5LY167DB25 is a BEARING,BALL,DUPLEX.
What parts can replace S2128M5LY167DB25?
There are 5 known substitutes for S2128M5LY167DB25: SR542TC-4/235, AVN542WICRDBFS160, AVN542ICRDBFS160 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for S2128M5LY167DB25?
S2128M5LY167DB25 is cataloged in the U.S. Government catalog under NSN 3110-01-049-4149. 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.