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D56518 — PLATE,RETAINING,BEARING

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

D56518: PLATE,RETAINING,BEARING.

The PLATE,RETAINING,BEARING is a the manufacturer industrial component. Key specifications include material: TIN ALLOY UNS L13890 INNER LAYER, material_document_and_classification: QQ-S-691 FED SPEC SINGLE MATERIAL RESPONSE OUTER LAYER. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-071-5575, 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
D56518
NSN: 3120-00-071-5575
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 16712 — SIEMENS ENERGY, INC. (USA)
SPECIFICATIONS
materialTIN ALLOY UNS L13890 INNER LAYER
material_document_and_classificationQQ-S-691 FED SPEC SINGLE MATERIAL RESPONSE OUTER LAYER
NSN3120-00-071-5575
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: D56518 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-691 FED SPEC SINGLE MATERIAL RESPONSE OUTER LAYER
•
MATERIAL: TIN ALLOY UNS L13890 INNER LAYER
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-691 FED SPEC SINGLE MATERIAL RESPONSE OUTER LAYER
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-T-390 FED SPEC SINGLE MATERIAL RESPONSE INNER LAYER
MATERIALTIN ALLOY UNS L13890 INNER LAYER
MATERIALSTEEL UNS K02001 OUTER LAYER
SUBSTITUTES & CROSS-REFERENCES 1
KGR395AULSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 D56518?
D56518 is a PLATE,RETAINING,BEARING.
What parts can replace D56518?
There is 1 known substitute for D56518: KGR395AUL. Substitute compatibility should be verified for your specific system.
What is the NSN for D56518?
D56518 is cataloged in the U.S. Government catalog under NSN 3120-00-071-5575. 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.