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Technical Data Sheet
PartsTable / COMPONENT / C191B
C191B ✓ 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 BEARING,ROLLER,NEEDLE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1090 OR STEEL COMP 1095 ROLLER, bore_diameter: 0.6880 INCHES MINIMUM AND 0.6890 INCHES MAXIMUM IN, overall_width: 0.4990 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN, alignment_type: RIGID, surface_finish: GROUND, special_features: OIL HOLE IN OUTER RACE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-847-3549, 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
C191B
NSN: 3110-00-847-3549
FSC: 3110
CAGE: 15393 — MOORE CORP /DEL/ DBA MOORE NORTH AMERICA (USA)
SPECIFICATIONS
materialSTEEL COMP 1090 OR STEEL COMP 1095 ROLLER
bore_diameter0.6880 INCHES MINIMUM AND 0.6890 INCHES MAXIMUM IN
overall_width0.4990 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
alignment_typeRIGID
surface_finishGROUND
special_featuresOIL HOLE IN OUTER RACE
style_designatorNON-SEPARABLE, OPEN END, DRAWN SHELL
surface_treatmentOXIDE FILM OVERALL
overall_outside_diameter0.8745 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
standard_tolerance_designationAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
NSN3110-00-847-3549
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: C191B · 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
•
BORE DIAMETER: 0.6880 INCHES MINIMUM AND 0.6890 INCHES MAXIMUM IN
•
OVERALL OUTSIDE DIAMETER: 0.8745 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: NON-SEPARABLE, OPEN END, DRAWN SHELL
•
SURFACE TREATMENT: OXIDE FILM OVERALL
•
MATERIAL: STEEL COMP 1090 OR STEEL COMP 1095 ROLLER
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESOIL HOLE IN OUTER RACE
BORE DIAMETER0.6880 INCHES MINIMUM AND 0.6890 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER0.8745 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
STYLE DESIGNATORNON-SEPARABLE, OPEN END, DRAWN SHELL
SURFACE TREATMENTOXIDE FILM OVERALL
MATERIALSTEEL COMP 1090 OR STEEL COMP 1095 ROLLER
MATERIALSTEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1012 OR STEEL COMP 1013 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 8615 OUTER RING
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
OVERALL WIDTH0.4990 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
SURFACE FINISHGROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
F2162Interchangeable
interchangeable cross-reference
interchangeable
30352620Interchangeable
interchangeable cross-reference
interchangeable
510P82Interchangeable
interchangeable cross-reference
interchangeable
B-55-OHInterchangeable
interchangeable cross-reference
interchangeable
MS17131-7Interchangeable
interchangeable cross-reference
interchangeable
ASTM F 2162-7Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C191B?
C191B is a BEARING,ROLLER,NEEDLE.
What parts can replace C191B?
There are 16 known substitutes for C191B: F2162, 30352620, 510P82 and 13 more. Substitute compatibility should be verified for your specific system.
Is C191B still available?
C191B is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026