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Technical Data Sheet
PartsTable / COMPONENT / 8A8463
8A8463 ✓ 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, hole_diameter: 0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 4.438 INCHES NOMINAL IN, aperture_width: 3.688 INCHES NOMINAL IN, overall_length: 6.312 INCHES NOMINAL IN, aperture_length: 5.438 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-449-6400, 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
8A8463
NSN: 5330-00-449-6400
FSC: 5330
CAGE: 95201 — NAPCO INTERNATIONAL LLC DBA NAPCO INTERNATIONAL INC (USA)
SPECIFICATIONS
materialPAPER AND GLUE OVERALL
hole_diameter0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width4.438 INCHES NOMINAL IN
aperture_width3.688 INCHES NOMINAL IN
overall_length6.312 INCHES NOMINAL IN
aperture_length5.438 INCHES NOMINAL IN
outside_corner_radius0.500 INCHES NOMINAL IN
cross-sectional_thickness0.010 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
inside_corner_inverted_radius0.375 INCHES NOMINAL IN
material_document_and_classificationMIL-G-12803,+3313B MIL SPEC ALL MATERIAL RESPONSES OVERALL
outside_edge_to_bolt_hole_center_distance_along_width0.500 INCHES NOMINAL IN
NSN5330-00-449-6400
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8A8463 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
•
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH: 3.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
CROSS-SECTIONAL THICKNESS: 0.010 INCHES NOMINAL IN
•
INSIDE CORNER INVERTED RADIUS: 0.375 INCHES NOMINAL IN
•
APERTURE WIDTH: 3.688 INCHES NOMINAL IN
•
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG WIDTH: 0.500 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
TECHNICAL CHARACTERISTICS (FLIS)
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH3.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CROSS-SECTIONAL THICKNESS0.010 INCHES NOMINAL IN
INSIDE CORNER INVERTED RADIUS0.375 INCHES NOMINAL IN
OVERALL WIDTH4.438 INCHES NOMINAL IN
APERTURE WIDTH3.688 INCHES NOMINAL IN
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG WIDTH0.500 INCHES NOMINAL IN
HOLE DIAMETER0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH5.312 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
OVERALL LENGTH6.312 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
506.3750Interchangeable
interchangeable cross-reference
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GGG-R-180Interchangeable
interchangeable cross-reference
interchangeable
21343Interchangeable
interchangeable cross-reference
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7024360Interchangeable
interchangeable cross-reference
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310-245RInterchangeable
interchangeable cross-reference
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F45-32RInterchangeable
interchangeable cross-reference
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LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8A8463?
8A8463 is a GASKET.
What parts can replace 8A8463?
There are 29 known substitutes for 8A8463: 506.3750, GGG-R-180, 21343 and 26 more. Substitute compatibility should be verified for your specific system.
Is 8A8463 still available?
8A8463 is currently cancelled.
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Last verified: July 2026