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Technical Data Sheet
PartsTable / COMPONENT / M-166
M-166 ✓ 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

RESISTOR,VARIABLE,NONWIRE WOUND,. Key specifications include width: 1.200 INCHES NOMINAL IN, height: 0.630 INCHES NOMINAL IN, length: 1.500 INCHES NOMINAL IN, material: STEEL OVERALL, tire_type: PLASTIC, body_style: IRREGULAR SHAPE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-293-9302, 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-166
NSN: 3110-00-293-9302
FSC: 3110
CAGE: 16760 — CRYOGENIC EQUIPMENT INC (USA)
SPECIFICATIONS
width1.200 INCHES NOMINAL IN
height0.630 INCHES NOMINAL IN
length1.500 INCHES NOMINAL IN
materialSTEEL OVERALL
tire_typePLASTIC
body_styleIRREGULAR SHAPE
bore_shapeSTRAIGHT
frame_typeRIGID
element_typeDYNAMIC
power_sourceFOOT
support_typePLATFORM
bore_diameter30.0 MILLIMETERS NOMINAL MM
NSN3110-00-293-9302
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: M-166 · 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
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
LOAD DIRECTION: RADIAL
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
RETAINER FABRICATION METHOD: PRESSED
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
TECHNICAL CHARACTERISTICS (FLIS)
BORE SHAPESTRAIGHT
STANDARD TOLERANCE DESIGNATIONABEC NO.1
LOAD DIRECTIONRADIAL
END ITEM IDENTIFICATIONLOGISTICS SUPPORT VESSEL (LSV)
INTERNAL FIT-UP DESIGNATIONSTANDARD
RETAINER FABRICATION METHODPRESSED
SURFACE FINISHGROUND
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
MATERIALSTEEL OVERALL
OVERALL WIDTH19.0 MILLIMETERS NOMINAL MM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
2974Interchangeable
interchangeable cross-reference
interchangeable
6207Interchangeable
interchangeable cross-reference
interchangeable
885C896P2Interchangeable
interchangeable cross-reference
interchangeable
JMC6525Interchangeable
interchangeable cross-reference
interchangeable
6525Interchangeable
interchangeable cross-reference
interchangeable
L501FInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M-166?
M-166 is a RESISTOR,VARIABLE,NONWIRE WOUND,.
What parts can replace M-166?
There are 27 known substitutes for M-166: 2974, 6207, 885C896P2 and 24 more. Substitute compatibility should be verified for your specific system.
Is M-166 still available?
M-166 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