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Technical Data Sheet
PartsTable / COMPONENT / 4081821
4081821 ✓ 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

COLD SECTION MODULE,AIRCRAFT GAS. Key specifications include end_item_identification: F100-PW-220/220E AIRCRAFT ENG, criticality_code_justification: AGAV, general_characteristics_item_description: T.O. 2J-F100-24; HOUSE THE THREE STAGE LOW PRESSURE FAN.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-447-4907, 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
4081821
NSN: 3110-00-447-4907
FSC: 3110
CAGE: 80020 — NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION JOINT BASE JBMDL (USA)
SPECIFICATIONS
end_item_identificationF100-PW-220/220E AIRCRAFT ENG
criticality_code_justificationAGAV
general_characteristics_item_descriptionT.O. 2J-F100-24; HOUSE THE THREE STAGE LOW PRESSURE FAN
NSN3110-00-447-4907
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 4081821 · 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
•
OVERALL OUTSIDE DIAMETER: 4.3301 INCHES MINIMUM AND 4.3307 INCHES MAXIMUM IN
•
BORE SHAPE: STRAIGHT
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
SEAL QUANTITY: 2
•
OUTER RING WIDTH: 29.0 MILLIMETERS NOMINAL MM
•
LUBRICATION MATERIAL: GREASE
•
LOAD DIRECTION: RADIAL
•
BEARING SEAL TYPE: LABYRINTH
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL OUTSIDE DIAMETER4.3301 INCHES MINIMUM AND 4.3307 INCHES MAXIMUM IN
BORE SHAPESTRAIGHT
INTERNAL FIT-UP DESIGNATIONSTANDARD
SEAL QUANTITY2
OUTER RING WIDTH29.0 MILLIMETERS NOMINAL MM
LUBRICATION MATERIALGREASE
LOAD DIRECTIONRADIAL
BEARING SEAL TYPELABYRINTH
SPECIAL FEATURESLUBRICATION HOLE IN OUTER RING
SURFACE FINISHGROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
4081821-805Interchangeable
interchangeable cross-reference
interchangeable
4081821-800Interchangeable
interchangeable cross-reference
interchangeable
4081821Interchangeable
interchangeable cross-reference
interchangeable
VA18-BP70/LL-41SInterchangeable
interchangeable cross-reference
interchangeable
65-1138-1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4081821?
4081821 is a COLD SECTION MODULE,AIRCRAFT GAS.
What parts can replace 4081821?
There are 5 known substitutes for 4081821: 4081821-805, 4081821-800, 4081821 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4081821?
4081821 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-447-4907. 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: July 2026