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2B1-05818 — PLATE,RETAINING,BEARING

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

2B1-05818: PLATE,RETAINING,BEARING.

The PLATE,RETAINING,BEARING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1020 OVERALL, outside_diameter: 7.2500 INCHES NOMINAL IN, style_designator: ROUND, aperture_diameter: 4.2500 INCHES NOMINAL IN, overall_thickness: 0.7750 INCHES NOMINAL IN, mounting_hole_type: ROUND, UNTHREADED. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-449-3171, 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
2B1-05818
NSN: 3110-01-449-3171
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 34712 — LAKE SHORE SYSTEMS, INC. (USA)
SPECIFICATIONS
materialSTEEL COMP 1020 OVERALL
outside_diameter7.2500 INCHES NOMINAL IN
style_designatorROUND
aperture_diameter4.2500 INCHES NOMINAL IN
overall_thickness0.7750 INCHES NOMINAL IN
mounting_hole_typeROUND, UNTHREADED
raised_surface_height0.2730 INCHES MINIMUM AND 0.2780 INCHES MAXIMUM IN
mounting_hole_diameter0.5625 INCHES NOMINAL IN
bolt_circle_hole_quantity6
cross-sectional_shape_styleRAISED SURFACE W/ APERTURE
mounting_hole_arrangement_styleSINGLE BOLT HOLE CIRCLE
outside_raised_surface_diameter4.7200 INCHES MINIMUM AND 4.7210 INCHES MAXIMUM IN
NSN3110-01-449-3171
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 2B1-05818 · 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: 0.2730 INCHES MINIMUM AND 0.2780 INCHES MAXIMUM IN
•
BOLT CIRCLE HOLE QUANTITY: 6
•
MOUNTING HOLE TYPE: ROUND, UNTHREADED
•
MOUNTING HOLE ARRANGEMENT STYLE: SINGLE BOLT HOLE CIRCLE
•
OVERALL THICKNESS: 0.7750 INCHES NOMINAL IN
•
STYLE DESIGNATOR: ROUND
•
MOUNTING HOLE DIAMETER: 0.5625 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RAISED SURFACE W/ APERTURE
TECHNICAL CHARACTERISTICS
RAISED SURFACE HEIGHT0.2730 INCHES MINIMUM AND 0.2780 INCHES MAXIMUM IN
BOLT CIRCLE HOLE QUANTITY6
MOUNTING HOLE TYPEROUND, UNTHREADED
MOUNTING HOLE ARRANGEMENT STYLESINGLE BOLT HOLE CIRCLE
OVERALL THICKNESS0.7750 INCHES NOMINAL IN
STYLE DESIGNATORROUND
MOUNTING HOLE DIAMETER0.5625 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERAISED SURFACE W/ APERTURE
OUTSIDE DIAMETER7.2500 INCHES NOMINAL IN
APERTURE DIAMETER4.2500 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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2B1-05818?
2B1-05818 is a PLATE,RETAINING,BEARING.
What is the NSN for 2B1-05818?
2B1-05818 is cataloged in the U.S. Government catalog under NSN 3110-01-449-3171. 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.