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57155K378 — BEARING,BALL,THRUST

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

57155K378: BEARING,BALL,THRUST.

The BEARING,BALL,THRUST is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, special_features: 0.3125 IN. BORE AND 0.500 IN.

OD IN, end_item_identification: 6665-01-452-9644, part_name_assigned_by_controlling_agency: BEARING BALL SHIELDED. This part is cataloged in the U.S. Government catalog under NSN 3110-01-562-1682, 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
57155K378
NSN: 3110-01-562-1682
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 59076 — DESIGNATRONICS INC STOCK DRIVE PRODUCTS DIV (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
special_features0.3125 IN. BORE AND 0.500 IN. OD IN
end_item_identification6665-01-452-9644
part_name_assigned_by_controlling_agencyBEARING BALL SHIELDED
NSN3110-01-562-1682
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 57155K378 · 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
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
SPECIAL FEATURES0.3125 IN. BORE AND 0.500 IN. OD IN
PART NAME ASSIGNED BY CONTROLLING AGENCYBEARING BALL SHIELDED
END ITEM IDENTIFICATION6665-01-452-9644
MATERIALSTEEL CORROSION RESISTING 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 57155K378?
57155K378 is a BEARING,BALL,THRUST.
What is the NSN for 57155K378?
57155K378 is cataloged in the U.S. Government catalog under NSN 3110-01-562-1682. 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.