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409357 ✓ Verified by PartsTable
Legrand · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

RECTIFIER,SEMICONDUCTOR DEVICE,U. Key specifications include material: PAPER AND GLUE OVERALL, mounting_method: UNTHREADED HOLE(S) AND SLOT, outside_diameter: 0.438 INCHES NOMINAL IN, aperture_diameter: 0.254 INCHES MINIMUM AND 0.259 INCHES MAXIMUM IN, cross-sectional_thickness: 0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-582-2736, 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
409357
NSN: 5330-00-582-2736
FSC: 5330
CAGE: 23040 — FORD MOTOR CO FORD PARTS AND SERVICE DIV GOVERNMENT PART SALES (USA)
SPECIFICATIONS
materialPAPER AND GLUE OVERALL
mounting_methodUNTHREADED HOLE(S) AND SLOT
outside_diameter0.438 INCHES NOMINAL IN
aperture_diameter0.254 INCHES MINIMUM AND 0.259 INCHES MAXIMUM IN
cross-sectional_thickness0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-G-12803,+3110 MIL SPEC ALL MATERIAL RESPONSES OVERALL
absolute_maximum_current_rating_per_characteristic60.00 AMPERES AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE
absolute_maximum_voltage_rating_in_volts_per_characteristic1600.0 WORKING PEAK REVERSE VOLTAGE
NSN5330-00-582-2736
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 409357 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
•
OUTSIDE DIAMETER: 0.438 INCHES NOMINAL IN
•
APERTURE DIAMETER: 0.254 INCHES MINIMUM AND 0.259 INCHES MAXIMUM IN
•
CROSS-SECTIONAL THICKNESS: 0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
MATERIAL: PAPER AND GLUE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-12803,+3110 MIL SPEC ALL MATERIAL RESPONSES OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER0.438 INCHES NOMINAL IN
APERTURE DIAMETER0.254 INCHES MINIMUM AND 0.259 INCHES MAXIMUM IN
CROSS-SECTIONAL THICKNESS0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
MATERIALPAPER AND GLUE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-12803,+3110 MIL SPEC ALL MATERIAL RESPONSES OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
117154Interchangeable
interchangeable cross-reference
interchangeable
20994Interchangeable
interchangeable cross-reference
interchangeable
308-2Interchangeable
interchangeable cross-reference
interchangeable
308-0002Interchangeable
interchangeable cross-reference
interchangeable
82394Interchangeable
interchangeable cross-reference
interchangeable
32950Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 409357?
409357 is a RECTIFIER,SEMICONDUCTOR DEVICE,U manufactured by Legrand.
What parts can replace 409357?
There are 22 known substitutes for 409357: 117154, 20994, 308-2 and 19 more. Substitute compatibility should be verified for your specific system.
Is 409357 still available?
409357 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026