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Technical Data Sheet
PartsTable / COMPONENT / R14139A
R14139A ✓ Verified by PartsTable
— · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

The BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_length: 3.750 INCHES NOMINAL IN, special_features: 11/16 IN.DIA. 2 HOLES IN, style_designator: SINGLE SOCKET T, wrenching_surface_size: 3.938 INCHES NOMINAL SINGLE END IN, wrenching_surface_shape: HEXAGON SINGLE END EXTERNAL.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-355-2622, 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
R14139A
NSN: 3120-00-355-2622
FSC: 3120
CAGE: 23926 — KOMATSU AMERICA CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_length3.750 INCHES NOMINAL IN
special_features11/16 IN.DIA. 2 HOLES IN
style_designatorSINGLE SOCKET T
wrenching_surface_size3.938 INCHES NOMINAL SINGLE END IN
wrenching_surface_shapeHEXAGON SINGLE END EXTERNAL
NSN3120-00-355-2622
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: R14139A · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
85-556Interchangeable
interchangeable cross-reference
interchangeable
102212-000Interchangeable
interchangeable cross-reference
interchangeable
650040-000Interchangeable
interchangeable cross-reference
interchangeable
14139Interchangeable
interchangeable cross-reference
interchangeable
4253254Interchangeable
interchangeable cross-reference
interchangeable
A0014139Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R14139A?
R14139A is a BEARING,SLEEVE.
What parts can replace R14139A?
There are 11 known substitutes for R14139A: 85-556, 102212-000, 650040-000 and 8 more. Substitute compatibility should be verified for your specific system.
Is R14139A still available?
R14139A is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026