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303110 — TRANSFORMER

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

303110: TRANSFORMER.

The TRANSFORMER is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 630 OVERALL, corner_shape: SQUARE LEFT FLANGE BODY CORNER, flange_width: 0.0590 INCHES MINIMUM AND 0.0600 INCHES MAXIMUM IN, overall_length: 0.5900 INCHES NOMINAL IN, surface_finish: 125.0 MICROINCHES RIGHT END SURFACE OF BODY, special_features: ITEM HAS CRITICAL TOLERANCES. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-555-7464, 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
303110
NSN: 3120-00-555-7464
NIINs: 005557464, 009870353, 011723923, 016595239
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 81205 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialCOPPER ALLOY 630 OVERALL
corner_shapeSQUARE LEFT FLANGE BODY CORNER
flange_width0.0590 INCHES MINIMUM AND 0.0600 INCHES MAXIMUM IN
overall_length0.5900 INCHES NOMINAL IN
surface_finish125.0 MICROINCHES RIGHT END SURFACE OF BODY
special_featuresITEM HAS CRITICAL TOLERANCES
style_designatorSOLID, EXTERNAL FLANGE ONE END
surface_treatmentCADMIUM AND CHROMATE RIGHT END SURFACE OF BODY
component_quantity2
body_inside_diameter1.6150 INCHES MINIMUM AND 1.6170 INCHES MAXIMUM IN
body_outside_diameter1.7520 INCHES MINIMUM AND 1.7530 INCHES MAXIMUM IN
flange_outside_diameter2.1200 INCHES NOMINAL IN
NSN3120-00-555-7464
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 303110 · 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: 125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
•
CORNER SHAPE: SQUARE INSIDE RIGHT CORNER
TECHNICAL CHARACTERISTICS
SURFACE FINISH125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
SURFACE FINISH32.0 MICROINCHES LEFT END SURFACE OF BODY AND FLANGE
SURFACE FINISH125.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE
SURFACE FINISH125.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
SURFACE FINISH125.0 MICROINCHES RIGHT END SURFACE OF BODY
SURFACE FINISH125.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF FLANGE
CORNER SHAPESQUARE INSIDE RIGHT CORNER
CORNER SHAPESQUARE LEFT FLANGE BODY CORNER
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 303110?
303110 is a TRANSFORMER.
What is the NSN for 303110?
303110 is cataloged in the U.S. Government catalog under NSN 3120-00-555-7464. 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.