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Technical Data Sheet
PartsTable / COMPONENT / M-191
M-191 ✓ 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 NETWORK,PULSE FORMING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, body_width: 1.500 INCHES NOMINAL IN, bore_shape: STRAIGHT, body_height: 1.562 INCHES NOMINAL IN, body_length: 1.250 INCHES NOMINAL IN, bore_diameter: 65.00 MILLIMETERS NOMINAL MM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-4746, 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
M-191
NSN: 3110-00-156-4746
FSC: 3110
CAGE: 61208 — TWIN DISC, INCORPORATED DBA TWIN DISC MID-ATLANTIC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_width1.500 INCHES NOMINAL IN
bore_shapeSTRAIGHT
body_height1.562 INCHES NOMINAL IN
body_length1.250 INCHES NOMINAL IN
bore_diameter65.00 MILLIMETERS NOMINAL MM
contact_angle25.0 DEGREES MAXIMUM
overall_width2.3125 INCHES NOMINAL IN
rating_methodELECTRICAL AND WINDING TURNS SINGLE COMPONENT SINGLE WINDING
turn_quantity6500 SINGLE COMPONENT SINGLE WINDING
inclosure_typeOPEN
load_directionANGULAR
NSN3110-00-156-4746
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: M-191 · 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 SHAPE: STRAIGHT
•
CONTACT ANGLE: 25.0 DEGREES MAXIMUM
•
LOAD DIRECTION: ANGULAR
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
SURFACE FINISH: GROUND
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
BORE SHAPESTRAIGHT
CONTACT ANGLE25.0 DEGREES MAXIMUM
LOAD DIRECTIONANGULAR
INTERNAL FIT-UP DESIGNATIONSTANDARD
SURFACE FINISHGROUND
STANDARD TOLERANCE DESIGNATIONABEC NO.1
BORE SHAPESTRAIGHT
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
RETAINER FABRICATION METHODPRESSED
LUBRICATION MATERIALGREASE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
B17Interchangeable
Target,bull's-Eye
interchangeable
CWC87038X1ANG25Interchangeable
interchangeable cross-reference
interchangeable
WC87038X2100ANG25Interchangeable
interchangeable cross-reference
interchangeable
WC87038-1LTInterchangeable
interchangeable cross-reference
interchangeable
905313Interchangeable
interchangeable cross-reference
interchangeable
5313Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M-191?
M-191 is a NETWORK,PULSE FORMING.
What parts can replace M-191?
There are 26 known substitutes for M-191: B17, CWC87038X1ANG25, WC87038X2100ANG25 and 23 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M-191?
M-191 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-4746. 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