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E20320 — DISK,SOLID,PLAIN

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

E20320: DISK,SOLID,PLAIN.

The DISK,SOLID,PLAIN is a the manufacturer industrial component. Key specifications include diameter: 0.750 INCHES NOMINAL IN, material: ALUMINUM ALLOY, thickness: 0.015 INCHES NOMINAL IN, surface_treatment: ANODIZE, fsc_application_data: AIRCRAFT OXYGEN BREATHING EQUIPMENT, machined_surface_finish: GROUND. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-438-9867, 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
E20320
NSN: 5340-00-438-9867
FSC: 5340 — Hardware, Commercial
CAGE: D1379 — B/E AEROSPACE SYSTEMS GMBH DIV LIFE SUPPORT SYSTEMS EUROPE (DEU)
SPECIFICATIONS
diameter0.750 INCHES NOMINAL IN
materialALUMINUM ALLOY
thickness0.015 INCHES NOMINAL IN
surface_treatmentANODIZE
fsc_application_dataAIRCRAFT OXYGEN BREATHING EQUIPMENT
machined_surface_finishGROUND
NSN5340-00-438-9867
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: E20320 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
•
FSC APPLICATION DATA: AIRCRAFT OXYGEN BREATHING EQUIPMENT
•
MACHINED SURFACE FINISH: GROUND
•
DIAMETER: 0.750 INCHES NOMINAL IN
•
SURFACE TREATMENT: ANODIZE
•
MATERIAL: ALUMINUM ALLOY
•
THICKNESS: 0.015 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATAAIRCRAFT OXYGEN BREATHING EQUIPMENT
MACHINED SURFACE FINISHGROUND
DIAMETER0.750 INCHES NOMINAL IN
SURFACE TREATMENTANODIZE
MATERIALALUMINUM ALLOY
THICKNESS0.015 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
53041-1Same 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 E20320?
E20320 is a DISK,SOLID,PLAIN.
What parts can replace E20320?
There is 1 known substitute for E20320: 53041-1. Substitute compatibility should be verified for your specific system.
What is the NSN for E20320?
E20320 is cataloged in the U.S. Government catalog under NSN 5340-00-438-9867. 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.