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Technical Data Sheet
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M181 — BEARING,BALL,ANNULAR

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

M181: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include outside_diameter: 60.0 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-156-4875, 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
M181
NSN: 3110-00-156-4875
NIINs: 001564875, 001564880, 002784357, 002972406, 010322898, 016407060
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 45149 — OSGOOD CO THE (USA)
SPECIFICATIONS
outside_diameter60.0 MILLIMETERS NOMINAL MM
special_featuresDOOR THICKNESS RANGE 1 TO 7 MM;LATCH AND MOUNTING CUP MATERIAL ACETAL;MAX STATIC LOAD 135N(30LBS);AVG ULTIMATE LOAD 175N(39LBS);OPERATING TEMPERATURE RANGE -40 TO 80 C LBS
NSN3110-00-156-4875
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: M181 · 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
•
LUBRICATION MATERIAL: GREASE
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: LOADING GROOVE, NON-SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 100.00 MILLIMETERS NOMINAL MM
•
BORE SHAPE: STRAIGHT
•
NONDEFINITIVE SPEC/STD DATA: 00 GRADE AND 145 TYPE
TECHNICAL CHARACTERISTICS
LUBRICATION MATERIALGREASE
INTERNAL FIT-UP DESIGNATIONSTANDARD
SURFACE FINISHGROUND
STYLE DESIGNATORLOADING GROOVE, NON-SEPARABLE
OVERALL WIDTH1.5625 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER100.00 MILLIMETERS NOMINAL MM
BORE SHAPESTRAIGHT
NONDEFINITIVE SPEC/STD DATA00 GRADE AND 145 TYPE
CONTACT ANGLE25.0 DEGREES MAXIMUM
LOAD DIRECTIONANGULAR
SUBSTITUTES & CROSS-REFERENCES 9
5309Reference document
Same NSN cross-reference
Reference document — Secondary reference
11012Reference document
Same NSN cross-reference
Reference document — Secondary reference
S637461Reference document
Same NSN cross-reference
Reference document — Secondary reference
BCA5309Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
714075Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MRC5309Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is M181?
M181 is a BEARING,BALL,ANNULAR.
What parts can replace M181?
There are 9 known substitutes for M181: 5309, 11012, S637461 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M181?
M181 is cataloged in the U.S. Government catalog under NSN 3110-00-156-4875. This indicates validated use in U.S. government and defense supply chains.
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