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PartsTable / COMPONENT / F4DDMILG3278A
F4DDMILG3278A ✓ 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

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, flange_width: 0.0420 INCHES NOMINAL IN, bore_diameter: 0.2500 INCHES MINIMUM AND 0.2503 INCHES MAXIMUM IN, load_direction: RADIAL, surface_finish: GROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-151-8095, 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
F4DDMILG3278A
NSN: 3110-00-151-8095
FSC: 3110
CAGE: 21335 — TIMKEN CO DIV THE TIMKEN COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
flange_width0.0420 INCHES NOMINAL IN
bore_diameter0.2500 INCHES MINIMUM AND 0.2503 INCHES MAXIMUM IN
load_directionRADIAL
surface_finishGROUND
shield_quantity2
inner_ring_width0.2490 INCHES MINIMUM AND 0.2510 INCHES MAXIMUM IN
outer_ring_taper0.0680 PER FOOT IN INCHES NOMINAL
outer_ring_width0.2260 INCHES NOMINAL IN
special_featuresBORE CORNER CHAMFERED0.0100 IN. BY 45 DEG AND SHIELDS ARE REMOVABLE IN
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
NSN3110-00-151-8095
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: F4DDMILG3278A · 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 DOCUMENT AND CLASSIFICATION: MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
•
LUBRICATION MATERIAL: GREASE
•
FLANGE OUTSIDE DIAMETER: 0.6870 INCHES NOMINAL IN
•
OUTER RING WIDTH: 0.2260 INCHES NOMINAL IN
•
FLANGE WIDTH: 0.0420 INCHES NOMINAL IN
•
SURFACE FINISH: GROUND
•
INNER RING WIDTH: 0.2490 INCHES MINIMUM AND 0.2510 INCHES MAXIMUM IN
•
INTERNAL CLEARANCE: 0.0002 INCHES MINIMUM RADIAL AND 0.0006 INCHES MAXIMUM RADIAL IN
TECHNICAL CHARACTERISTICS (FLIS)
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
LUBRICATION MATERIALGREASE
FLANGE OUTSIDE DIAMETER0.6870 INCHES NOMINAL IN
OUTER RING WIDTH0.2260 INCHES NOMINAL IN
FLANGE WIDTH0.0420 INCHES NOMINAL IN
SURFACE FINISHGROUND
INNER RING WIDTH0.2490 INCHES MINIMUM AND 0.2510 INCHES MAXIMUM IN
INTERNAL CLEARANCE0.0002 INCHES MINIMUM RADIAL AND 0.0006 INCHES MAXIMUM RADIAL IN
SPECIAL FEATURESBORE CORNER CHAMFERED0.0100 IN. BY 45 DEG AND SHIELDS ARE REMOVABLE IN
BORE DIAMETER0.2500 INCHES MINIMUM AND 0.2503 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
200025Interchangeable
interchangeable cross-reference
interchangeable
200-365Interchangeable
interchangeable cross-reference
interchangeable
760-1802 STYLE 333Interchangeable
interchangeable cross-reference
interchangeable
333-7/8Interchangeable
interchangeable cross-reference
interchangeable
251-4Interchangeable
interchangeable cross-reference
interchangeable
F4DDE5116Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is F4DDMILG3278A?
F4DDMILG3278A is a BEARING,BALL,ANNULAR.
What parts can replace F4DDMILG3278A?
There are 28 known substitutes for F4DDMILG3278A: 200025, 200-365, 760-1802 STYLE 333 and 25 more. Substitute compatibility should be verified for your specific system.
Is F4DDMILG3278A still available?
F4DDMILG3278A is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026