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309R — BEARING,BALL,ANNULAR

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

309R: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include overall_height: 6.250 INCHES NOMINAL IN, special_features: WHITE ALL-ROUND, CHROME PLATED, 2-MILE VISIBILITY. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-159-9067, 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
309R
NSN: 3110-00-159-9067
NIINs: 001599067, 014143536
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 38443 — SKF USA INC. (USA)
SPECIFICATIONS
overall_height6.250 INCHES NOMINAL IN
special_featuresWHITE ALL-ROUND, CHROME PLATED, 2-MILE VISIBILITY
NSN3110-00-159-9067
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 309R · 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
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: COUNTERBORED OUTER RING, NON-SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 100.00 MILLIMETERS NOMINAL MM
•
BORE SHAPE: STRAIGHT
•
LOAD DIRECTION: RADIAL
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODMACHINED
INTERNAL FIT-UP DESIGNATIONSTANDARD
SURFACE FINISHGROUND
STYLE DESIGNATORCOUNTERBORED OUTER RING, NON-SEPARABLE
OVERALL WIDTH25.0 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER100.00 MILLIMETERS NOMINAL MM
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
STANDARD TOLERANCE DESIGNATIONABEC NO.1
BORE DIAMETER45.00 MILLIMETERS NOMINAL MM
SUBSTITUTES & CROSS-REFERENCES 3
MRC309RReference document
Same NSN cross-reference
Reference document — Design control — primary reference
D7581-12-7Reference document
Same NSN cross-reference
Reference document — Secondary reference
11006-11Reference 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 309R?
309R is a BEARING,BALL,ANNULAR.
What parts can replace 309R?
There are 3 known substitutes for 309R: MRC309R, D7581-12-7, 11006-11. Substitute compatibility should be verified for your specific system.
What is the NSN for 309R?
309R is cataloged in the U.S. Government catalog under NSN 3110-00-159-9067. 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.