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539755 — BEARING,BALL,ANNULAR

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

539755: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING SHIELD, bore_shape: STRAIGHT, bore_diameter: 0.3123 INCHES MINIMUM AND 0.3752 INCHES MAXIMUM IN, overall_width: 0.1552 INCHES MINIMUM AND 0.1562 INCHES MAXIMUM IN, load_direction: RADIAL, surface_finish: GROUND. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-722-3105, 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
539755
NSN: 3120-00-722-3105
NIINs: 007223105, 009696899
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 28839 — TELEDYNE INDUSTRIES INC TELEDYNE POWER SYSTEMS DIV (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING SHIELD
bore_shapeSTRAIGHT
bore_diameter0.3123 INCHES MINIMUM AND 0.3752 INCHES MAXIMUM IN
overall_width0.1552 INCHES MINIMUM AND 0.1562 INCHES MAXIMUM IN
load_directionRADIAL
surface_finishGROUND
shield_quantity2
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
internal_clearance0.0001 INCHES MINIMUM RADIAL AND 0.0003 INCHES MAXIMUM RADIAL IN
overall_outside_diameter0.4998 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
standard_tolerance_designationABEC NO.7
material_document_and_classificationAMS 5630 ASSN STD SINGLE MATERIAL RESPONSE BALL
NSN3120-00-722-3105
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 539755 · 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
•
BODY OUTSIDE DIAMETER: 0.2440 INCHES MINIMUM AND 0.2470 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
BODY INSIDE DIAMETER: 0.1660 INCHES MINIMUM AND 0.1740 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
BODY OUTSIDE DIAMETER0.2440 INCHES MINIMUM AND 0.2470 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
OVERALL LENGTH0.3100 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.1660 INCHES MINIMUM AND 0.1740 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 539755?
539755 is a BEARING,BALL,ANNULAR.
What is the NSN for 539755?
539755 is cataloged in the U.S. Government catalog under NSN 3120-00-722-3105. 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.