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5186887 — PLATE,RETAINING,BEARING

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

5186887: PLATE,RETAINING,BEARING.

The PLATE,RETAINING,BEARING is a the manufacturer industrial component. Key specifications include width: 0.125 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN, material: STEEL OVERALL, outside_diameter: 5.120 INCHES NOMINAL IN, special_features: RAISED SURFACE; ROUND APERTURE; ROUND SHAPE, aperture_diameter: 3.875 INCHES NOMINAL IN, surface_treatment: PHOSPHATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-176-2311, 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
5186887
NSN: 3110-01-176-2311
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
width0.125 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
materialSTEEL OVERALL
outside_diameter5.120 INCHES NOMINAL IN
special_featuresRAISED SURFACE; ROUND APERTURE; ROUND SHAPE
aperture_diameter3.875 INCHES NOMINAL IN
surface_treatmentPHOSPHATE OVERALL
mounting_hole_typeROUND, UNTHREADED
raised_surface_height0.105 INCHES NOMINAL IN
bolt_circle_hole_quantity12
mounting_bolt_circle_diameter4.736 INCHES NOMINAL IN
mounting_hole_arrangement_styleSINGLE BOLT HOLE CIRCLE
outside_raised_surface_diameter4.000 INCHES NOMINAL IN
NSN3110-01-176-2311
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 5186887 · 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
•
RAISED SURFACE HEIGHT: 0.105 INCHES NOMINAL IN
•
BOLT CIRCLE HOLE QUANTITY: 12
•
MOUNTING HOLE TYPE: ROUND, UNTHREADED
•
MOUNTING HOLE ARRANGEMENT STYLE: SINGLE BOLT HOLE CIRCLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 5.120 INCHES NOMINAL IN
•
APERTURE DIAMETER: 3.875 INCHES NOMINAL IN
•
MOUNTING BOLT CIRCLE DIAMETER: 4.736 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
RAISED SURFACE HEIGHT0.105 INCHES NOMINAL IN
BOLT CIRCLE HOLE QUANTITY12
MOUNTING HOLE TYPEROUND, UNTHREADED
MOUNTING HOLE ARRANGEMENT STYLESINGLE BOLT HOLE CIRCLE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER5.120 INCHES NOMINAL IN
APERTURE DIAMETER3.875 INCHES NOMINAL IN
MOUNTING BOLT CIRCLE DIAMETER4.736 INCHES NOMINAL IN
SPECIAL FEATURESRAISED SURFACE; ROUND APERTURE; ROUND SHAPE
SURFACE TREATMENTPHOSPHATE OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
2923928Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5186887?
5186887 is a PLATE,RETAINING,BEARING.
What parts can replace 5186887?
There is 1 known substitute for 5186887: 2923928. Substitute compatibility should be verified for your specific system.
What is the NSN for 5186887?
5186887 is cataloged in the U.S. Government catalog under NSN 3110-01-176-2311. 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.