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0R306 — RING,BEARING,OUTER

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

0R306: RING,BEARING,OUTER.

The RING,BEARING,OUTER is a the manufacturer industrial component. Key specifications include bore_diameter: 2.5000 INCHES NOMINAL IN, overall_width: 1.1880 INCHES NOMINAL IN, surface_finish: GROUND, overall_outside_diameter: 72.00 MILLIMETERS NOMINAL MM, standard_tolerance_designation: AFBMA STD TOLERANCES FOR JOURNAL BEARINGS. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-151-8506, 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
0R306
NSN: 3110-00-151-8506
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 51588 — RBC BEARINGS INCORPORATED DIV WEST TRENTON DIVISION (USA)
SPECIFICATIONS
bore_diameter2.5000 INCHES NOMINAL IN
overall_width1.1880 INCHES NOMINAL IN
surface_finishGROUND
overall_outside_diameter72.00 MILLIMETERS NOMINAL MM
standard_tolerance_designationAFBMA STD TOLERANCES FOR JOURNAL BEARINGS
NSN3110-00-151-8506
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 0R306 · 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
•
SURFACE FINISH: GROUND
•
OVERALL OUTSIDE DIAMETER: 72.00 MILLIMETERS NOMINAL MM
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCES FOR JOURNAL BEARINGS
•
BORE DIAMETER: 2.5000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SURFACE FINISHGROUND
OVERALL WIDTH1.1880 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER72.00 MILLIMETERS NOMINAL MM
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCES FOR JOURNAL BEARINGS
BORE DIAMETER2.5000 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
113771Reference document
Same NSN cross-reference
Reference document — Design control — primary 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 0R306?
0R306 is a RING,BEARING,OUTER.
What parts can replace 0R306?
There is 1 known substitute for 0R306: 113771. Substitute compatibility should be verified for your specific system.
What is the NSN for 0R306?
0R306 is cataloged in the U.S. Government catalog under NSN 3110-00-151-8506. 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.