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518517 — CASE,COMBUSTION CHAMBER,AIRCRAFT

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

518517: CASE,COMBUSTION CHAMBER,AIRCRAFT.

CASE,COMBUSTION CHAMBER,AIRCRAFT. Key specifications include diameter: 1.690 INCHES MINIMUM AND 1.710 INCHES MAXIMUM IN, material: STEEL OVERALL, overall_length: 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN, end_item_identification: ACFT ENG TF33, engine_section_location: COMBUSTION CHAMBER, criticality_code_justification: AGAV. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-735-1189, 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
518517
NSN: 3120-00-735-1189
NIINs: 007351189, 011595314
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 02978 — RENK AMERICA LLC DIV RENK AMERICA (USA)
SPECIFICATIONS
diameter1.690 INCHES MINIMUM AND 1.710 INCHES MAXIMUM IN
materialSTEEL OVERALL
overall_length0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
end_item_identificationACFT ENG TF33
engine_section_locationCOMBUSTION CHAMBER
criticality_code_justificationAGAV
NSN3120-00-735-1189
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 518517 · 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: 63.0 MICROINCHES RIGHT END SURFACE OF BODY
•
CORNER SHAPE: CHAMFERED INSIDE LEFT CORNER
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES RIGHT END SURFACE OF BODY
SURFACE FINISH50.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
SURFACE FINISH20.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
SURFACE FINISH50.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE
SURFACE FINISH20.0 MICROINCHES LEFT END SURFACE OF BODY AND FLANGE
CORNER SHAPECHAMFERED INSIDE LEFT CORNER
CORNER SHAPESQUARE LEFT FLANGE BODY CORNER
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
CORNER SHAPESQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
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 518517?
518517 is a CASE,COMBUSTION CHAMBER,AIRCRAFT.
What is the NSN for 518517?
518517 is cataloged in the U.S. Government catalog under NSN 3120-00-735-1189. 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.