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5820357 — PLATE,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

5820357: PLATE,MOUNTING.

The PLATE,MOUNTING is a the manufacturer industrial component. Key specifications include shape: SPECIAL, material: STEEL, thickness: 0.434 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN, aperture_shape: ROUND, surface_treatment: PASSIVATE, end_item_identification: AFTERBODY SECTION,TORPEDO MK50. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-327-8188, 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
5820357
NSN: 5340-01-327-8188
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
shapeSPECIAL
materialSTEEL
thickness0.434 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
aperture_shapeROUND
surface_treatmentPASSIVATE
end_item_identificationAFTERBODY SECTION,TORPEDO MK50
material_document_and_classificationQQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
NSN5340-01-327-8188
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5820357 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE
•
SHAPE: SPECIAL
•
SURFACE TREATMENT: PASSIVATE
•
MATERIAL: STEEL
•
THICKNESS: 0.434 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
•
APERTURE SHAPE: ROUND
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE
SHAPESPECIAL
SURFACE TREATMENTPASSIVATE
END ITEM IDENTIFICATIONAFTERBODY SECTION,TORPEDO MK50
MATERIALSTEEL
THICKNESS0.434 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
APERTURE SHAPEROUND
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
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 5820357?
5820357 is a PLATE,MOUNTING.
What is the NSN for 5820357?
5820357 is cataloged in the U.S. Government catalog under NSN 5340-01-327-8188. 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.