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523555 — BEARING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

523555: BEARING,SLEEVE.

The BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OVERALL, corner_shape: SQUARE OUTSIDE RIGHT CORNER, flange_width: 0.0620 INCHES MINIMUM AND 0.0625 INCHES MAXIMUM IN, overall_length: 0.3220 INCHES MINIMUM AND 0.3225 INCHES MAXIMUM IN, surface_finish: 100.0 MICROINCHES OVERALL, hardness_rating: 25.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-309-1441, 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
523555
NSN: 3120-00-309-1441
NIINs: 003091441, 012732225
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 6K4C8 — GOODRICH CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OVERALL
corner_shapeSQUARE OUTSIDE RIGHT CORNER
flange_width0.0620 INCHES MINIMUM AND 0.0625 INCHES MAXIMUM IN
overall_length0.3220 INCHES MINIMUM AND 0.3225 INCHES MAXIMUM IN
surface_finish100.0 MICROINCHES OVERALL
hardness_rating25.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
style_designatorSOLID, EXTERNAL FLANGE ONE END
surface_treatmentCADMIUM OVERALL
body_inside_diameter0.5310 INCHES NOMINAL IN
body_outside_diameter0.6882 INCHES MINIMUM AND 0.6887 INCHES MAXIMUM IN
flange_outside_diameter0.9900 INCHES MINIMUM AND 1.0100 INCHES MAXIMUM IN
NSN3120-00-309-1441
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 523555 · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SURFACE FINISH: 100.0 MICROINCHES OVERALL
•
CORNER SHAPE: SQUARE INSIDE RIGHT CORNER
•
FLANGE OUTSIDE DIAMETER: 0.9900 INCHES MINIMUM AND 1.0100 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH100.0 MICROINCHES OVERALL
CORNER SHAPESQUARE INSIDE RIGHT CORNER
CORNER SHAPESQUARE LEFT FLANGE BODY CORNER
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
CORNER SHAPESQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE INSIDE LEFT CORNER
FLANGE OUTSIDE DIAMETER0.9900 INCHES MINIMUM AND 1.0100 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER0.6882 INCHES MINIMUM AND 0.6887 INCHES MAXIMUM IN
HARDNESS RATING25.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
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 523555?
523555 is a BEARING,SLEEVE.
What is the NSN for 523555?
523555 is cataloged in the U.S. Government catalog under NSN 3120-00-309-1441. 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.