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Technical Data Sheet
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M18161X — Technical Data Sheet

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— · 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 OVERALL, bore_diameter: 1.1250 INCHES NOMINAL IN, overall_width: 1.0000 INCHES NOMINAL IN, alignment_type: RIGID, special_features: EXTRA CAPACITY OUTER RACE, style_designator: NON-SEPARABLE, WITH ROLLER RETAINER, CLOSED END, DRAWN SHELL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 3110-00-108-7966, 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
M18161X
NSN: 3110-00-108-7966
FSC: 3110
CAGE: 60380 — TIMKEN AEROSPACE, INC DBA TORRINGTON PRODUCT (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_diameter1.1250 INCHES NOMINAL IN
overall_width1.0000 INCHES NOMINAL IN
alignment_typeRIGID
special_featuresEXTRA CAPACITY OUTER RACE
style_designatorNON-SEPARABLE, WITH ROLLER RETAINER, CLOSED END, DRAWN SHELL
lubrication_materialLUBRICANT
overall_outside_diameter1.3750 INCHES NOMINAL IN
standard_tolerance_designationAFBMA STD TOLERANCE FOR AIRFRAME NEEDLE BEARINGS
NSN3110-00-108-7966
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: M18161X · 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
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR AIRFRAME NEEDLE BEARINGS
•
ALIGNMENT TYPE: RIGID
•
LUBRICATION MATERIAL: LUBRICANT
•
BORE DIAMETER: 1.1250 INCHES NOMINAL IN
•
OVERALL OUTSIDE DIAMETER: 1.3750 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESEXTRA CAPACITY OUTER RACE
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR AIRFRAME NEEDLE BEARINGS
ALIGNMENT TYPERIGID
LUBRICATION MATERIALLUBRICANT
OVERALL WIDTH1.0000 INCHES NOMINAL IN
BORE DIAMETER1.1250 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER1.3750 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
STYLE DESIGNATORNON-SEPARABLE, WITH ROLLER RETAINER, CLOSED END, DRAWN SHELL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
148437InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
CPA3662-2InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
927C912-2InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
3855-2InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
173548InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
5910010385395InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M18161X?
M18161X is a BEARING,ROLLER,NEEDLE.
What parts can replace M18161X?
There are 16 known substitutes for M18161X: 148437, CPA3662-2, 927C912-2 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M18161X?
M18161X is cataloged in the Federal Logistics Information System under NSN 3110-00-108-7966. 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: September 2026