PartsTable
Technical Data Sheet

145DS502-2/3 — BEARING,ROLLER,CYLINDRICAL

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

145DS502-2/3: BEARING,ROLLER,CYLINDRICAL.

The BEARING,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 2.9525 INCHES MINIMUM AND 2.9531 INCHES MAXIMUM IN, overall_width: 0.6109 INCHES MINIMUM AND 0.6489 INCHES MAXIMUM IN, surface_finish: UNGROUND, locating_feature: NONLOCATING. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-340-9928, 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
145DS502-2/3
NSN: 3110-01-340-9928
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 81996 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter2.9525 INCHES MINIMUM AND 2.9531 INCHES MAXIMUM IN
overall_width0.6109 INCHES MINIMUM AND 0.6489 INCHES MAXIMUM IN
surface_finishUNGROUND
locating_featureNONLOCATING
outer_ring_width0.6051 INCHES MINIMUM AND 0.6399 INCHES MAXIMUM IN
style_designatorSINGLE ROW, TWO LIP OUTER RING, NO INNER RING, ROLLER RETAINMENT RINGS, NON-SEPARABLE
end_item_identificationCH-47D,CARGO,HEL
overall_outside_diameter4.1336 INCHES MINIMUM AND 4.1342 INCHES MAXIMUM IN
NSN3110-01-340-9928
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 145DS502-2/3 · 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
•
OUTER RING WIDTH: 0.6051 INCHES MINIMUM AND 0.6399 INCHES MAXIMUM IN
•
LOCATING FEATURE: NONLOCATING
•
SURFACE FINISH: UNGROUND
•
STYLE DESIGNATOR: SINGLE ROW, TWO LIP OUTER RING, NO INNER RING, ROLLER RETAINMENT RINGS, NON-SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 4.1336 INCHES MINIMUM AND 4.1342 INCHES MAXIMUM IN
•
BORE SHAPE: STRAIGHT
TECHNICAL CHARACTERISTICS
OUTER RING WIDTH0.6051 INCHES MINIMUM AND 0.6399 INCHES MAXIMUM IN
LOCATING FEATURENONLOCATING
SURFACE FINISHUNGROUND
STYLE DESIGNATORSINGLE ROW, TWO LIP OUTER RING, NO INNER RING, ROLLER RETAINMENT RINGS, NON-SEPARABLE
OVERALL WIDTH0.6109 INCHES MINIMUM AND 0.6489 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER4.1336 INCHES MINIMUM AND 4.1342 INCHES MAXIMUM IN
BORE SHAPESTRAIGHT
END ITEM IDENTIFICATIONCH-47D,CARGO,HEL
BORE DIAMETER2.9525 INCHES MINIMUM AND 2.9531 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
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 4
145DS502-3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MR1915C2Reference document
Same NSN cross-reference
Reference document — Secondary reference
AAVF9315R1W2 MSRReference document
Same NSN cross-reference
Reference document — Secondary reference
145DS502-2Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 145DS502-2/3?
145DS502-2/3 is a BEARING,ROLLER,CYLINDRICAL.
What parts can replace 145DS502-2/3?
There are 4 known substitutes for 145DS502-2/3: 145DS502-3, MR1915C2, AAVF9315R1W2 MSR and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 145DS502-2/3?
145DS502-2/3 is cataloged in the U.S. Government catalog under NSN 3110-01-340-9928. 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.