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285777 — BEARING,ROLLER,CYLINDRICAL

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

285777: BEARING,ROLLER,CYLINDRICAL.

The BEARING,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include special_features: INCLUDES PART NUMBERS 246432;240142;292734;246453. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-866-2299, 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
285777
NSN: 3110-00-866-2299
NIINs: 008662299, 010798101
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
special_featuresINCLUDES PART NUMBERS 246432;240142;292734;246453
NSN3110-00-866-2299
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 285777 · 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
•
RETAINER FABRICATION METHOD: FORGED
•
OUTER RING WIDTH: 1.1761 INCHES MINIMUM AND 1.1811 INCHES MAXIMUM IN
•
INTERNAL CLEARANCE: 0.0022 INCHES MINIMUM RADIAL AND 0.0041 INCHES MAXIMUM RADIAL IN
•
LOCATING FEATURE: NONLOCATING
•
SURFACE FINISH: GROUND
•
OVERALL OUTSIDE DIAMETER: 4.3304 INCHES MINIMUM AND 4.3307 INCHES MAXIMUM IN
•
BORE SHAPE: STRAIGHT
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODFORGED
OUTER RING WIDTH1.1761 INCHES MINIMUM AND 1.1811 INCHES MAXIMUM IN
INTERNAL CLEARANCE0.0022 INCHES MINIMUM RADIAL AND 0.0041 INCHES MAXIMUM RADIAL IN
LOCATING FEATURENONLOCATING
SURFACE FINISHGROUND
OVERALL OUTSIDE DIAMETER4.3304 INCHES MINIMUM AND 4.3307 INCHES MAXIMUM IN
BORE SHAPESTRAIGHT
SPECIAL FEATURESINNER AND OUTER RINGS FLANGED;OUTER RING 0.3150 IN. WIDER THAN INNER RING;SILVER PLATE CAGE 0.0005-0.0015 THKON LAND RIDING SURFACES AND ROLLER POCKETS PEP AMS 2412;NO STRIKE METAL REQD;BAKE 475-500F FOR 2HRS TO CHECK FOR BOND IN
END ITEM IDENTIFICATIONACFT ENG J-57
STANDARD TOLERANCE DESIGNATIONRBEC NO.5
SUBSTITUTES & CROSS-REFERENCES 1
450296Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 285777?
285777 is a BEARING,ROLLER,CYLINDRICAL.
What parts can replace 285777?
There is 1 known substitute for 285777: 450296. Substitute compatibility should be verified for your specific system.
What is the NSN for 285777?
285777 is cataloged in the U.S. Government catalog under NSN 3110-00-866-2299. 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.