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Technical Data Sheet

M81820/1-8 — BEARING,ROLLER,SELF-ALIGNING

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

M81820/1-8: BEARING,ROLLER,SELF-ALIGNING.

The BEARING,ROLLER,SELF-ALIGNING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, bore_shape: STRAIGHT, surface_finish: GROUND, special_features: NEXT HIGHER ASSEMBLY IS LIFTFAN ASSEMBLY MODULE, style_designator: SPHERICAL OUTER RING, EXTERNALLY SELF-ALIGNING, NON-LOADING GROOVE NON-SEPARABLE, end_item_identification: F-35 LIFT FAN. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-667-0082, 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
M81820/1-8
NSN: 3110-01-667-0082
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
bore_shapeSTRAIGHT
surface_finishGROUND
special_featuresNEXT HIGHER ASSEMBLY IS LIFTFAN ASSEMBLY MODULE
style_designatorSPHERICAL OUTER RING, EXTERNALLY SELF-ALIGNING, NON-LOADING GROOVE NON-SEPARABLE
end_item_identificationF-35 LIFT FAN
part_name_assigned_by_controlling_agencyBEARING, SELF-ALIGNING
NSN3110-01-667-0082
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: M81820/1-8 · 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
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: SPHERICAL OUTER RING, EXTERNALLY SELF-ALIGNING, NON-LOADING GROOVE NON-SEPARABLE
•
BORE SHAPE: STRAIGHT
•
MATERIAL: ALUMINUM ALLOY OVERALL
TECHNICAL CHARACTERISTICS
SURFACE FINISHGROUND
STYLE DESIGNATORSPHERICAL OUTER RING, EXTERNALLY SELF-ALIGNING, NON-LOADING GROOVE NON-SEPARABLE
BORE SHAPESTRAIGHT
SPECIAL FEATURESNEXT HIGHER ASSEMBLY IS LIFTFAN ASSEMBLY MODULE
PART NAME ASSIGNED BY CONTROLLING AGENCYBEARING, SELF-ALIGNING
END ITEM IDENTIFICATIONF-35 LIFT FAN
MATERIALALUMINUM ALLOY OVERALL
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is M81820/1-8?
M81820/1-8 is a BEARING,ROLLER,SELF-ALIGNING.
What is the NSN for M81820/1-8?
M81820/1-8 is cataloged in the U.S. Government catalog under NSN 3110-01-667-0082. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.