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12930859 — 12930859

✓ Government record, cited
COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE · TAPERED BEARING
PRODUCT OVERVIEW

12930859: 12930859.

The 12930859 is a COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE industrial component. This part is cataloged in the U.S. Government catalog under NSN 3110-01-452-1245, 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
12930859
NSN: 3110-01-452-1245
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
Part Number12930859
ManufacturerCOMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE
NSN3110-01-452-1245
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 12930859 · COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE ⚠ 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
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SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE, TANDEM MOUNTING
•
MATERIAL DOCUMENT AND CLASSIFICATION: UNABLE TO DECODE
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OVERALL OUTSIDE DIAMETER: 1.6533 INCHES MINIMUM AND 1.6537 INCHES MAXIMUM IN
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LOAD DIRECTION: ANGULAR
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BORE DIAMETER: 0.7872 INCHES MINIMUM AND 0.7876 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 440C BALL
TECHNICAL CHARACTERISTICS
SURFACE FINISHGROUND
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE, TANDEM MOUNTING
MATERIAL DOCUMENT AND CLASSIFICATIONUNABLE TO DECODE
OVERALL WIDTH0.9348 INCHES MINIMUM AND 0.9448 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER1.6533 INCHES MINIMUM AND 1.6537 INCHES MAXIMUM IN
LOAD DIRECTIONANGULAR
BORE DIAMETER0.7872 INCHES MINIMUM AND 0.7876 INCHES MAXIMUM IN
MATERIALSTEEL COMP 440C BALL
MATERIALSTEEL COMP 440C INNER RACE
MATERIALPLASTIC PHENOLIC SEPARATOR
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 12930859?
12930859 is a 12930859 manufactured by COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE.
What is the NSN for 12930859?
12930859 is cataloged in the U.S. Government catalog under NSN 3110-01-452-1245. 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.