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Technical Data Sheet
PartsTable / COMPONENT / M171
M171 ✓ 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 SEMICONDUCTOR DEVICE,DIODE is a the manufacturer industrial component. Key specifications include material: PLASTIC ENCLOSURE, bore_shape: STRAIGHT, corner_shape: SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER, bore_diameter: 35.00 MILLIMETERS NOMINAL MM, contact_angle: 25.0 DEGREES MAXIMUM, hole_diameter: 0.3740 INCHES MINIMUM AND 0.3810 INCHES MAXIMUM FIRST IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-5456, 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
M171
NSN: 3110-00-156-5456
FSC: 3110
CAGE: 16760 — CRYOGENIC EQUIPMENT INC (USA)
SPECIFICATIONS
materialPLASTIC ENCLOSURE
bore_shapeSTRAIGHT
corner_shapeSQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
bore_diameter35.00 MILLIMETERS NOMINAL MM
contact_angle25.0 DEGREES MAXIMUM
hole_diameter0.3740 INCHES MINIMUM AND 0.3810 INCHES MAXIMUM FIRST IN
overall_width21.00 MILLIMETERS NOMINAL MM
load_directionRADIAL
overall_length0.281 INCHES MAXIMUM IN
surface_finishGROUND
mounting_methodTERMINAL
shield_quantity1
NSN3110-00-156-5456
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: M171 · 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
•
CONTACT ANGLE: 25.0 DEGREES MAXIMUM
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
BORE SHAPE: STRAIGHT
•
INTERNAL FIT-UP CONTACT ANGULAR DIRECTION: OUTWARD CONVERGENT
•
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
•
LOAD DIRECTION: ANGULAR
•
LUBRICATION MATERIAL: GREASE
•
SURFACE FINISH: GROUND
TECHNICAL CHARACTERISTICS (FLIS)
CONTACT ANGLE25.0 DEGREES MAXIMUM
INTERNAL FIT-UP DESIGNATIONSTANDARD
BORE SHAPESTRAIGHT
INTERNAL FIT-UP CONTACT ANGULAR DIRECTIONOUTWARD CONVERGENT
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
LOAD DIRECTIONANGULAR
LUBRICATION MATERIALGREASE
SURFACE FINISHGROUND
STANDARD TOLERANCE DESIGNATIONABEC NO.1
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 32
MIL-S-37080Interchangeable
Slippers,convalescent Patients'
interchangeable
5207Interchangeable
IBM 146.8GB 10K 2Gbps FC HS
interchangeable
607127-18Interchangeable
interchangeable cross-reference
interchangeable
N265Interchangeable
interchangeable cross-reference
interchangeable
72-6970-505Interchangeable
interchangeable cross-reference
interchangeable
5207RHInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M171?
M171 is a SEMICONDUCTOR DEVICE,DIODE.
What parts can replace M171?
There are 32 known substitutes for M171: MIL-S-37080, 5207, 607127-18 and 29 more. Substitute compatibility should be verified for your specific system.
Is M171 still available?
M171 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