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517579 — BEARING,WASHER,THRUST

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

517579: BEARING,WASHER,THRUST.

The BEARING,WASHER,THRUST is a the manufacturer industrial component. Key specifications include diameter: 1.5625 INCHES MINIMUM AND 1.5630 INCHES MAXIMUM IN, flange_thickness: 0.1290 INCHES MINIMUM AND 0.1350 INCHES MAXIMUM IN, outside_diameter: 1.7500 INCHES NOMINAL IN, style_designator: ROUND, overall_thickness: 0.2400 INCHES MINIMUM AND 0.2600 INCHES MAXIMUM IN, surface_condition: GROUND. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-159-6981, 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
517579
NSN: 3120-00-159-6981
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 06481 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
diameter1.5625 INCHES MINIMUM AND 1.5630 INCHES MAXIMUM IN
flange_thickness0.1290 INCHES MINIMUM AND 0.1350 INCHES MAXIMUM IN
outside_diameter1.7500 INCHES NOMINAL IN
style_designatorROUND
overall_thickness0.2400 INCHES MINIMUM AND 0.2600 INCHES MAXIMUM IN
surface_conditionGROUND
shank_outside_diameter1.6600 INCHES MINIMUM AND 1.6605 INCHES MAXIMUM IN
center_hole_shape_styleROUND
cross-sectional_shape_styleSHOULDERED
NSN3120-00-159-6981
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 517579 · 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
•
FLANGE THICKNESS: 0.1290 INCHES MINIMUM AND 0.1350 INCHES MAXIMUM IN
•
OVERALL THICKNESS: 0.2400 INCHES MINIMUM AND 0.2600 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: ROUND
•
DIAMETER: 1.5625 INCHES MINIMUM AND 1.5630 INCHES MAXIMUM IN
•
SURFACE CONDITION: GROUND
•
CROSS-SECTIONAL SHAPE STYLE: SHOULDERED
•
OUTSIDE DIAMETER: 1.7500 INCHES NOMINAL IN
•
SHANK OUTSIDE DIAMETER: 1.6600 INCHES MINIMUM AND 1.6605 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
FLANGE THICKNESS0.1290 INCHES MINIMUM AND 0.1350 INCHES MAXIMUM IN
OVERALL THICKNESS0.2400 INCHES MINIMUM AND 0.2600 INCHES MAXIMUM IN
STYLE DESIGNATORROUND
DIAMETER1.5625 INCHES MINIMUM AND 1.5630 INCHES MAXIMUM IN
SURFACE CONDITIONGROUND
CROSS-SECTIONAL SHAPE STYLESHOULDERED
OUTSIDE DIAMETER1.7500 INCHES NOMINAL IN
SHANK OUTSIDE DIAMETER1.6600 INCHES MINIMUM AND 1.6605 INCHES MAXIMUM IN
CENTER HOLE SHAPE STYLEROUND
OTHER ITEMS IN FSC 3120 — Bearings, Plain, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3120-00-001-1288 3120-00-001-1835 3120-00-001-1838 3120-00-001-1928 3120-00-001-1934 3120-00-001-3933 3120-00-001-3937 3120-00-001-3938
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 517579?
517579 is a BEARING,WASHER,THRUST.
What is the NSN for 517579?
517579 is cataloged in the U.S. Government catalog under NSN 3120-00-159-6981. 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.