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A5939 — BEARING,ROLLER,CYLINDRICAL

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

A5939: BEARING,ROLLER,CYLINDRICAL.

The BEARING,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY RETAINER, bore_shape: STRAIGHT, surface_finish: GROUND, locating_feature: NONLOCATING, special_features: RETAINER SILVER PLATED, internal_clearance: 0.0005 INCHES MINIMUM RADIAL AND 0.0012 INCHES MAXIMUM RADIAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-809-6695, 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
A5939
NSN: 3110-00-809-6695
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 01212 — FEDERAL-MOGUL CORP GOVERNMENT SALES DEPT (USA)
SPECIFICATIONS
materialCOPPER ALLOY RETAINER
bore_shapeSTRAIGHT
surface_finishGROUND
locating_featureNONLOCATING
special_featuresRETAINER SILVER PLATED
internal_clearance0.0005 INCHES MINIMUM RADIAL AND 0.0012 INCHES MAXIMUM RADIAL IN
retainer_fabrication_methodMACHINED
standard_tolerance_designationRBEC NO.5
NSN3110-00-809-6695
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: A5939 · 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
•
RETAINER FABRICATION METHOD: MACHINED
•
INTERNAL CLEARANCE: 0.0005 INCHES MINIMUM RADIAL AND 0.0012 INCHES MAXIMUM RADIAL IN
•
LOCATING FEATURE: NONLOCATING
•
SURFACE FINISH: GROUND
•
BORE SHAPE: STRAIGHT
•
STANDARD TOLERANCE DESIGNATION: RBEC NO.5
•
MATERIAL: STEEL OUTER RING
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODMACHINED
INTERNAL CLEARANCE0.0005 INCHES MINIMUM RADIAL AND 0.0012 INCHES MAXIMUM RADIAL IN
LOCATING FEATURENONLOCATING
SURFACE FINISHGROUND
BORE SHAPESTRAIGHT
SPECIAL FEATURESRETAINER SILVER PLATED
STANDARD TOLERANCE DESIGNATIONRBEC NO.5
MATERIALSTEEL OUTER RING
MATERIALCOPPER ALLOY RETAINER
MATERIALSTEEL ROLLER
SUBSTITUTES & CROSS-REFERENCES 2
K674885-11Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
454962Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A5939?
A5939 is a BEARING,ROLLER,CYLINDRICAL.
What parts can replace A5939?
There are 2 known substitutes for A5939: K674885-11, 454962. Substitute compatibility should be verified for your specific system.
What is the NSN for A5939?
A5939 is cataloged in the U.S. Government catalog under NSN 3110-00-809-6695. 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.