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Technical Data Sheet
PartsTable / COMPONENT / 6491A
6491A ✓ Verified by PartsTable
— · TAPERED BEARING
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

The RETAINER AND BALLS,BEARING is a the manufacturer industrial component. Key specifications include special_features: FUNCTION: FREEZING RAIN SENSOR; REFERENCE DATA: TI-6560.71, AWSS PG 19-5, end_item_identification: AUTOMATED WEATHER SENSORS SYSTEM (AWSS). This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-195-1064, 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
6491A
NSN: 3110-00-195-1064
FSC: 3110
CAGE: 1ML14 — BRINKLEY TECHNOLOGY GROUP LLC DBA HERCULES MANUFACTURING (USA)
SPECIFICATIONS
special_featuresFUNCTION: FREEZING RAIN SENSOR; REFERENCE DATA: TI-6560.71, AWSS PG 19-5
end_item_identificationAUTOMATED WEATHER SENSORS SYSTEM (AWSS)
NSN3110-00-195-1064
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 6491A · 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
•
MATERIAL: STEEL RETAINER
•
RETAINER PIECE QUANTITY: 1
•
BORE DIAMETER: 0.6300 INCHES NOMINAL IN
•
RETAINER FABRICATION METHOD: PRESSED
•
ROLLING ELEMENT DIAMETER: 0.1875 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL RETAINER
SPECIAL FEATURESIN LINE
RETAINER PIECE QUANTITY1
BORE DIAMETER0.6300 INCHES NOMINAL IN
RETAINER FABRICATION METHODPRESSED
SPECIAL FEATURESIN LINE
RETAINER PIECE QUANTITY1
ROLLING ELEMENT DIAMETER0.1875 INCHES NOMINAL IN
OUTSIDE DIAMETER1.1750 INCHES NOMINAL IN
STYLE DESIGNATORRETAINER AND BALLS, THRUST
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
50021-R-116Interchangeable
interchangeable cross-reference
interchangeable
8900-0441-001Interchangeable
interchangeable cross-reference
interchangeable
E0L44507AInterchangeable
interchangeable cross-reference
interchangeable
50021Interchangeable
interchangeable cross-reference
interchangeable
2868320-1Interchangeable
interchangeable cross-reference
interchangeable
41B1944-175Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6491A?
6491A is a RETAINER AND BALLS,BEARING.
What parts can replace 6491A?
There are 18 known substitutes for 6491A: 50021-R-116, 8900-0441-001, E0L44507A and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 6491A?
6491A is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-195-1064. 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