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Technical Data Sheet
PartsTable / COMPONENT / KC2839
KC2839 ✓ 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

NUT,COUPLING,ELECTRICAL CONDUIT. Key specifications include material: STEEL COMP 8620 OR STEEL COMP 8720 OVERALL, corner_shape: SQUARE ALL CORNERS, hole_diameter: 0.1250 INCHES NOMINAL FIRST IN, overall_length: 2.1200 INCHES MINIMUM AND 2.1240 INCHES MAXIMUM IN, surface_finish: 125.0 MICROINCHES RIGHT END SURFACE OF BODY, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-741-1125, 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
KC2839
NSN: 3120-00-741-1125
FSC: 3120
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
materialSTEEL COMP 8620 OR STEEL COMP 8720 OVERALL
corner_shapeSQUARE ALL CORNERS
hole_diameter0.1250 INCHES NOMINAL FIRST IN
overall_length2.1200 INCHES MINIMUM AND 2.1240 INCHES MAXIMUM IN
surface_finish125.0 MICROINCHES RIGHT END SURFACE OF BODY
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
features_providedCASEHARDENED
body_inside_diameter1.5010 INCHES MINIMUM AND 1.5030 INCHES MAXIMUM IN
body_outside_diameter2.1244 INCHES MINIMUM AND 2.1250 INCHES MAXIMUM IN
lubricant_accommodation_styleGROOVED CIRCULAR
surface_groove_location_and_quantity1 INTERNAL
antirotation/lubrication_type_and_quantity2 HOLE
NSN3120-00-741-1125
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: KC2839 · 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
KEY FEATURES
•
LUBRICANT ACCOMMODATION STYLE: GROOVED CIRCULAR
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
SURFACE FINISH: 125.0 MICROINCHES LEFT END SURFACE OF BODY
•
CORNER SHAPE: SQUARE ALL CORNERS
•
SURFACE GROOVE LOCATION AND QUANTITY: 1 INTERNAL
•
FEATURES PROVIDED: CASEHARDENED
•
HOLE DIAMETER: 0.1250 INCHES NOMINAL FIRST IN
TECHNICAL CHARACTERISTICS (FLIS)
LUBRICANT ACCOMMODATION STYLEGROOVED CIRCULAR
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
SURFACE FINISH125.0 MICROINCHES LEFT END SURFACE OF BODY
CORNER SHAPESQUARE ALL CORNERS
SURFACE GROOVE LOCATION AND QUANTITY1 INTERNAL
OVERALL LENGTH2.1200 INCHES MINIMUM AND 2.1240 INCHES MAXIMUM IN
FEATURES PROVIDEDCASEHARDENED
HOLE DIAMETER0.1250 INCHES NOMINAL FIRST IN
SURFACE FINISH125.0 MICROINCHES RIGHT END SURFACE OF BODY
ANTIROTATION/LUBRICATION TYPE AND QUANTITY2 HOLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
23350Interchangeable
interchangeable cross-reference
interchangeable
E1026-29B2PInterchangeable
interchangeable cross-reference
interchangeable
B5047Interchangeable
interchangeable cross-reference
interchangeable
SDF10Interchangeable
interchangeable cross-reference
interchangeable
1171091Interchangeable
interchangeable cross-reference
interchangeable
86150Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is KC2839?
KC2839 is a NUT,COUPLING,ELECTRICAL CONDUIT.
What parts can replace KC2839?
There are 9 known substitutes for KC2839: 23350, E1026-29B2P, B5047 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for KC2839?
KC2839 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-741-1125. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026