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T478-000 — BEARING,BALL,ANNULAR

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

T478-000: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL COMP E52100 INNER RACE, bore_shape: STRAIGHT, flange_width: 0.0615 INCHES MINIMUM AND 0.0625 INCHES MAXIMUM IN, bore_diameter: 0.7498 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN, overall_width: 0.3115 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN, load_direction: RADIAL. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-349-5212, 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
T478-000
NSN: 3110-01-349-5212
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 40920 — MPB CORP DIV TIMKEN SUPER PRECISION (USA)
SPECIFICATIONS
materialSTEEL COMP E52100 INNER RACE
bore_shapeSTRAIGHT
flange_width0.0615 INCHES MINIMUM AND 0.0625 INCHES MAXIMUM IN
bore_diameter0.7498 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
overall_width0.3115 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN
load_directionRADIAL
surface_finishGROUND
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
lubrication_materialGREASE
flange_outside_diameter1.2710 INCHES MINIMUM AND 1.2910 INCHES MAXIMUM IN
outer_ring_outside_diameter1.1871 INCHES MINIMUM AND 1.1875 INCHES MAXIMUM IN
standard_tolerance_designationABEC NO. 5T
NSN3110-01-349-5212
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: T478-000 · 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
•
FLANGE OUTSIDE DIAMETER: 1.2710 INCHES MINIMUM AND 1.2910 INCHES MAXIMUM IN
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
BORE SHAPE: STRAIGHT
•
LOAD DIRECTION: RADIAL
•
FLANGE WIDTH: 0.0615 INCHES MINIMUM AND 0.0625 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
LUBRICATION MATERIALGREASE
FLANGE OUTSIDE DIAMETER1.2710 INCHES MINIMUM AND 1.2910 INCHES MAXIMUM IN
SURFACE FINISHGROUND
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
OVERALL WIDTH0.3115 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
FLANGE WIDTH0.0615 INCHES MINIMUM AND 0.0625 INCHES MAXIMUM IN
OUTER RING OUTSIDE DIAMETER1.1871 INCHES MINIMUM AND 1.1875 INCHES MAXIMUM IN
STANDARD TOLERANCE DESIGNATIONABEC NO. 5T
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 1
5906371Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is T478-000?
T478-000 is a BEARING,BALL,ANNULAR.
What parts can replace T478-000?
There is 1 known substitute for T478-000: 5906371. Substitute compatibility should be verified for your specific system.
What is the NSN for T478-000?
T478-000 is cataloged in the U.S. Government catalog under NSN 3110-01-349-5212. 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.