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9390-9 — OSCILLATOR,NONCRYSTAL CONTROLLED

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

9390-9: OSCILLATOR,NONCRYSTAL CONTROLLED.

OSCILLATOR,NONCRYSTAL CONTROLLED. Key specifications include diameter: 4.1250 INCHES NOMINAL IN, material: STEEL OVERALL, input_phase: SINGLE SINGLE OPERATING POWER RQMT, control_type: REMOTE, corner_shape: SQUARE ALL CORNERS, overall_width: 1.260 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-541-7916, 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
9390-9
NSN: 3120-00-541-7916
NIINs: 005417916, 008479190, 010245837, 012925910
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 62983 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
diameter4.1250 INCHES NOMINAL IN
materialSTEEL OVERALL
input_phaseSINGLE SINGLE OPERATING POWER RQMT
control_typeREMOTE
corner_shapeSQUARE ALL CORNERS
overall_width1.260 INCHES NOMINAL IN
inclosure_typeENCASED
overall_height0.440 INCHES NOMINAL IN
overall_length2.640 INCHES NOMINAL IN
connection_typeCOAXIAL RECEPTACLE RIGHT SIDE
outside_diameter4.6875 INCHES NOMINAL IN
style_designatorROUND
NSN3120-00-541-7916
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 9390-9 · 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
•
CORNER SHAPE: SQUARE ALL CORNERS
•
OVERALL THICKNESS: 0.1800 INCHES MINIMUM AND 0.1820 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: ROUND
•
DIAMETER: 4.1250 INCHES NOMINAL IN
•
SURFACE CONDITION: GROUND
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
OUTSIDE DIAMETER: 4.6875 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
OVERALL THICKNESS0.1800 INCHES MINIMUM AND 0.1820 INCHES MAXIMUM IN
STYLE DESIGNATORROUND
DIAMETER4.1250 INCHES NOMINAL IN
SURFACE CONDITIONGROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OUTSIDE DIAMETER4.6875 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
CENTER HOLE SHAPE STYLEROUND
SUBSTITUTES & CROSS-REFERENCES 1
A742386Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 9390-9?
9390-9 is a OSCILLATOR,NONCRYSTAL CONTROLLED.
What parts can replace 9390-9?
There is 1 known substitute for 9390-9: A742386. Substitute compatibility should be verified for your specific system.
What is the NSN for 9390-9?
9390-9 is cataloged in the U.S. Government catalog under NSN 3120-00-541-7916. 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.