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5820579 — SEAL,PLAIN ENCASED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

5820579: SEAL,PLAIN ENCASED.

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, case_style: SHOULDERED, seal_width: 1.260 INCHES NOMINAL IN, surface_treatment: PASSIVATE OVERALL, end_item_identification: AFTERBODY SECTION,TORPEDO MK50, accommodated_shaft_diameter: 0.566 INCHES MINIMUM AND 0.569 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-327-7964, 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
5820579
NSN: 5330-01-327-7964
FSC: 5330 — Packing and Gasket Materials
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
case_styleSHOULDERED
seal_width1.260 INCHES NOMINAL IN
surface_treatmentPASSIVATE OVERALL
end_item_identificationAFTERBODY SECTION,TORPEDO MK50
accommodated_shaft_diameter0.566 INCHES MINIMUM AND 0.569 INCHES MAXIMUM IN
NSN5330-01-327-7964
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5820579 MFR: OEM ⚠ 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
•
SEAL WIDTH: 1.260 INCHES NOMINAL IN
•
CASE STYLE: SHOULDERED
•
ACCOMMODATED SHAFT DIAMETER: 0.566 INCHES MINIMUM AND 0.569 INCHES MAXIMUM IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
SEAL WIDTH1.260 INCHES NOMINAL IN
CASE STYLESHOULDERED
ACCOMMODATED SHAFT DIAMETER0.566 INCHES MINIMUM AND 0.569 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
END ITEM IDENTIFICATIONAFTERBODY SECTION,TORPEDO MK50
MATERIALSTEEL CORROSION RESISTING OVERALL
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5820579?
5820579 is a SEAL,PLAIN ENCASED.
What is the NSN for 5820579?
5820579 is cataloged in the U.S. Government catalog under NSN 5330-01-327-7964. 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.