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020198 — DISK,SOLID,PLAIN

✓ Government record, cited
Legrand · ORING SEAL
PRODUCT OVERVIEW

020198: DISK,SOLID,PLAIN.

The DISK,SOLID,PLAIN is a Legrand industrial component. Key specifications include diameter: 4.984 INCHES MINIMUM AND 5.016 INCHES MAXIMUM IN, material: ALUMINUM ALLOY, thickness: 0.050 INCHES NOMINAL IN, material_document_and_classification: QQ-A-250/1, 0 FED SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-356-1221, 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
020198
NSN: 5330-00-356-1221
NIINs: 003561221, 012293830, 014592053
FSC: 5330 — Packing and Gasket Materials
CAGE: 61510 — THERMO KING CORPORATION DBA PHOENIX GLOBAL DISTIRBUTION. (USA)
SPECIFICATIONS
diameter4.984 INCHES MINIMUM AND 5.016 INCHES MAXIMUM IN
materialALUMINUM ALLOY
thickness0.050 INCHES NOMINAL IN
material_document_and_classificationQQ-A-250/1, 0 FED SPEC SINGLE MATERIAL RESPONSE
NSN5330-00-356-1221
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 020198 MFR: Legrand ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CROSS-SECTIONAL THICKNESS: 0.140 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CIRCULAR
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
OUTSIDE DIAMETER: 1.250 INCHES NOMINAL IN
•
APERTURE DIAMETER: 0.562 INCHES NOMINAL IN
•
MATERIAL: RUBBER OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.140 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER1.250 INCHES NOMINAL IN
APERTURE DIAMETER0.562 INCHES NOMINAL IN
MATERIALRUBBER OVERALL
SUBSTITUTES & CROSS-REFERENCES 4
G3861Reference document
Same NSN cross-reference
Reference document — Secondary reference
WPP2626Reference document
Same NSN cross-reference
Reference document — Secondary reference
18812Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
31G3861Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 020198?
020198 is a DISK,SOLID,PLAIN manufactured by Legrand.
What parts can replace 020198?
There are 4 known substitutes for 020198: G3861, WPP2626, 18812 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 020198?
020198 is cataloged in the U.S. Government catalog under NSN 5330-00-356-1221. 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.