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R104KCY4 — BEARING,ROLLER,CYLINDRICAL

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

R104KCY4: BEARING,ROLLER,CYLINDRICAL.

The BEARING,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY CAGE, bore_shape: STRAIGHT, bore_diameter: 0.7870 INCHES MINIMUM AND 0.7878 INCHES MAXIMUM IN, inner_ring_width: 0.4674 INCHES MINIMUM AND 0.4724 INCHES MAXIMUM IN, style_designator: SINGLE ROW, TWO LIP INNER RING, NO OUTER RING, ROLLER RETAINMENT RINGS, NON-SEPARABLE, overall_outside_diameter: 1.4776 INCHES MINIMUM AND 1.4780 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-059-7106, 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
R104KCY4
NSN: 3110-01-059-7106
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 38443 — SKF USA INC. (USA)
SPECIFICATIONS
materialCOPPER ALLOY CAGE
bore_shapeSTRAIGHT
bore_diameter0.7870 INCHES MINIMUM AND 0.7878 INCHES MAXIMUM IN
inner_ring_width0.4674 INCHES MINIMUM AND 0.4724 INCHES MAXIMUM IN
style_designatorSINGLE ROW, TWO LIP INNER RING, NO OUTER RING, ROLLER RETAINMENT RINGS, NON-SEPARABLE
overall_outside_diameter1.4776 INCHES MINIMUM AND 1.4780 INCHES MAXIMUM IN
standard_tolerance_designationRBEC NO.1
NSN3110-01-059-7106
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: R104KCY4 · 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
•
STYLE DESIGNATOR: SINGLE ROW, TWO LIP INNER RING, NO OUTER RING, ROLLER RETAINMENT RINGS, NON-SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 1.4776 INCHES MINIMUM AND 1.4780 INCHES MAXIMUM IN
•
BORE SHAPE: STRAIGHT
•
STANDARD TOLERANCE DESIGNATION: RBEC NO.1
•
BORE DIAMETER: 0.7870 INCHES MINIMUM AND 0.7878 INCHES MAXIMUM IN
•
MATERIAL: COPPER ALLOY CAGE
•
INNER RING WIDTH: 0.4674 INCHES MINIMUM AND 0.4724 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSINGLE ROW, TWO LIP INNER RING, NO OUTER RING, ROLLER RETAINMENT RINGS, NON-SEPARABLE
OVERALL OUTSIDE DIAMETER1.4776 INCHES MINIMUM AND 1.4780 INCHES MAXIMUM IN
BORE SHAPESTRAIGHT
SPECIAL FEATURESCORROSION PREVENTIVE COMPOUND TO BE COMPATIBLE WITH MIL-L-7808 AND MIL-C-8188;SUITABLE FOR OPERATIONAL TEMPERATURE OF -50 DEG F TO 350 DEG F;MATERIAL FOR RACES AND ROLLERS,AMS 6440 OR 6441 OR EQUIVALENT DEGF
STANDARD TOLERANCE DESIGNATIONRBEC NO.1
BORE DIAMETER0.7870 INCHES MINIMUM AND 0.7878 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY CAGE
INNER RING WIDTH0.4674 INCHES MINIMUM AND 0.4724 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES 5
5901024Reference document
Same NSN cross-reference
Reference document — Secondary reference
4820 04UN3APReference document
Same NSN cross-reference
Reference document — Secondary reference
RNHB-104-97Reference document
Same NSN cross-reference
Reference document — Secondary reference
RN 1004 VAXReference document
Same NSN cross-reference
Reference document — Secondary reference
S51182Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is R104KCY4?
R104KCY4 is a BEARING,ROLLER,CYLINDRICAL.
What parts can replace R104KCY4?
There are 5 known substitutes for R104KCY4: 5901024, 4820 04UN3AP, RNHB-104-97 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R104KCY4?
R104KCY4 is cataloged in the U.S. Government catalog under NSN 3110-01-059-7106. This indicates validated use in U.S. government and defense supply chains.
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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.