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6409506 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The GASKET is a the manufacturer industrial component. Key specifications include material: PAPER AND GLUE OVERALL, overall_width: 4.562 INCHES NOMINAL IN, aperture_diameter: 1.438 INCHES NOMINAL IN, outside_corner_radius: 0.406 INCHES NOMINAL IN, cross-sectional_thickness: 0.031 INCHES NOMINAL IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-572-4409, 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
6409506
NSN: 5330-00-572-4409
FSC: 5330
CAGE: 28265 — HERCULES ENGINE CO INC (USA)
SPECIFICATIONS
materialPAPER AND GLUE OVERALL
overall_width4.562 INCHES NOMINAL IN
aperture_diameter1.438 INCHES NOMINAL IN
outside_corner_radius0.406 INCHES NOMINAL IN
cross-sectional_thickness0.031 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-G-12803,+3212 MIL SPEC ALL MATERIAL RESPONSES OR MIL-G-12803,+3213 MIL SPEC ALL MATERIAL RESPONSES OVERALL
outside_edge_to_bolt_hole_center_distance_along_width0.406 INCHES NOMINAL IN
outside_edge_to_bolt_hole_center_distance_along_length0.406 INCHES NOMINAL IN
center_to_center_distance_between_bolt_holes_along_width3.750 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
center_to_center_distance_between_bolt_holes_along_length3.875 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
NSN5330-00-572-4409
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6409506 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-12803,+3212 MIL SPEC ALL MATERIAL RESPONSES OR MIL-G-12803,+3213 MIL SPEC ALL MATERIAL RESPONSES OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
OUTSIDE CORNER RADIUS: 0.406 INCHES NOMINAL IN
•
APERTURE DIAMETER: 1.438 INCHES NOMINAL IN
•
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH: 0.406 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.031 INCHES NOMINAL IN
•
MATERIAL: PAPER AND GLUE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH4.562 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-12803,+3212 MIL SPEC ALL MATERIAL RESPONSES OR MIL-G-12803,+3213 MIL SPEC ALL MATERIAL RESPONSES OVERALL
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE CORNER RADIUS0.406 INCHES NOMINAL IN
APERTURE DIAMETER1.438 INCHES NOMINAL IN
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH0.406 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
MATERIALPAPER AND GLUE OVERALL
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH3.750 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG WIDTH0.406 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
191775Interchangeable
interchangeable cross-reference
interchangeable
5310PL1370038Interchangeable
interchangeable cross-reference
interchangeable
50-30-8Interchangeable
interchangeable cross-reference
interchangeable
273710Interchangeable
interchangeable cross-reference
interchangeable
SM-C-763801-3Interchangeable
interchangeable cross-reference
interchangeable
SM-C-763801Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6409506?
6409506 is a GASKET.
What parts can replace 6409506?
There are 12 known substitutes for 6409506: 191775, 5310PL1370038, 50-30-8 and 9 more. Substitute compatibility should be verified for your specific system.
Is 6409506 still available?
6409506 is currently cancelled.
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Last verified: July 2026