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527388 — BEARING,BALL,ANNULAR

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

527388: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, bore_shape: STRAIGHT, flange_width: 0.0420 INCHES NOMINAL IN, bore_diameter: 0.2500 INCHES NOMINAL IN, overall_width: 0.1960 INCHES NOMINAL IN, load_direction: RADIAL. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-490-1657, 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
527388
NSN: 3110-00-490-1657
NIINs: 004901657, 012167573
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 06987 — FL AEROSPACE CORP JANITROL AERO DIV/GENERAL DESIGN (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
bore_shapeSTRAIGHT
flange_width0.0420 INCHES NOMINAL IN
bore_diameter0.2500 INCHES NOMINAL IN
overall_width0.1960 INCHES NOMINAL IN
load_directionRADIAL
surface_finishGROUND
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
internal_clearance0.0008 INCHES MINIMUM RADIAL AND 0.0011 INCHES MAXIMUM RADIAL IN
flange_outside_diameter0.6900 INCHES NOMINAL IN
outer_ring_outside_diameter0.6250 INCHES NOMINAL IN
retainer_fabrication_methodPRESSED
NSN3110-00-490-1657
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 527388 · 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: PRESSED
•
INTERNAL CLEARANCE: 0.0008 INCHES MINIMUM RADIAL AND 0.0011 INCHES MAXIMUM RADIAL IN
•
FLANGE OUTSIDE DIAMETER: 0.6900 INCHES NOMINAL IN
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
BORE SHAPE: STRAIGHT
•
LOAD DIRECTION: RADIAL
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODPRESSED
INTERNAL CLEARANCE0.0008 INCHES MINIMUM RADIAL AND 0.0011 INCHES MAXIMUM RADIAL IN
FLANGE OUTSIDE DIAMETER0.6900 INCHES NOMINAL IN
SURFACE FINISHGROUND
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
OVERALL WIDTH0.1960 INCHES NOMINAL IN
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
FLANGE WIDTH0.0420 INCHES NOMINAL IN
OUTER RING OUTSIDE DIAMETER0.6250 INCHES NOMINAL IN
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 527388?
527388 is a BEARING,BALL,ANNULAR.
What is the NSN for 527388?
527388 is cataloged in the U.S. Government catalog under NSN 3110-00-490-1657. 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.