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6539-11-105-2103 — PLATE,RETAINING,BEARING

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

6539-11-105-2103: PLATE,RETAINING,BEARING.

The PLATE,RETAINING,BEARING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OR STEEL COMP E4340 OVERALL, hardness_rating: 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM, overall_thickness: 0.256 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN, surface_treatment: OXIDE OVERALL, mounting_hole_type: ROUND, UNTHREADED, raised_surface_height: 0.050 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-124-6827, 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
6539-11-105-2103
NSN: 3110-01-124-6827
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OR STEEL COMP E4340 OVERALL
hardness_rating39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
overall_thickness0.256 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
surface_treatmentOXIDE OVERALL
mounting_hole_typeROUND, UNTHREADED
raised_surface_height0.050 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
mounting_hole_diameter0.265 INCHES NOMINAL IN
bolt_circle_hole_quantity2
cross-sectional_shape_styleRAISED SURFACE W/O APERTURE
outside_raised_surface_diameter0.438 INCHES NOMINAL IN
material_document_and_classificationMIL-S-18729 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
NSN3110-01-124-6827
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 6539-11-105-2103 · 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: 0.050 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
•
BOLT CIRCLE HOLE QUANTITY: 2
•
MOUNTING HOLE TYPE: ROUND, UNTHREADED
•
OVERALL THICKNESS: 0.256 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
•
HARDNESS RATING: 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-18729 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
•
MOUNTING HOLE DIAMETER: 0.265 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RAISED SURFACE W/O APERTURE
TECHNICAL CHARACTERISTICS
RAISED SURFACE HEIGHT0.050 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
BOLT CIRCLE HOLE QUANTITY2
MOUNTING HOLE TYPEROUND, UNTHREADED
OVERALL THICKNESS0.256 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
HARDNESS RATING39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-18729 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
MOUNTING HOLE DIAMETER0.265 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERAISED SURFACE W/O APERTURE
SURFACE TREATMENTOXIDE OVERALL
OUTSIDE RAISED SURFACE DIAMETER0.438 INCHES NOMINAL 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6539-11-105-2103?
6539-11-105-2103 is a PLATE,RETAINING,BEARING.
What is the NSN for 6539-11-105-2103?
6539-11-105-2103 is cataloged in the U.S. Government catalog under NSN 3110-01-124-6827. This indicates validated use in U.S. government and defense supply chains.
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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.