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3340386 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3340386: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: ASBESTOS AND RUBBER POLYISOPRENE NATURAL CLASS NR OR RUBBER POLYISOPRENE SYNTHETIC CLASS IR OVERALL, hole_diameter: 0.563 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 8.000 INCHES NOMINAL IN, aperture_width: 3.750 INCHES NOMINAL IN, overall_length: 10.000 INCHES NOMINAL IN, aperture_length: 5.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-160-6682, 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
3340386
NSN: 5330-00-160-6682
FSC: 5330 — Packing and Gasket Materials
CAGE: 80195 — ED ETNYRE & CO (USA)
SPECIFICATIONS
materialASBESTOS AND RUBBER POLYISOPRENE NATURAL CLASS NR OR RUBBER POLYISOPRENE SYNTHETIC CLASS IR OVERALL
hole_diameter0.563 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width8.000 INCHES NOMINAL IN
aperture_width3.750 INCHES NOMINAL IN
overall_length10.000 INCHES NOMINAL IN
aperture_length5.250 INCHES NOMINAL IN
special_featuresCENTERLINE OF ALL BOLTHOLES LOCATED 0.500 IN. FROM OUTSIDE EDGE OF GASKET IN
style_designatorNON-CIRCULAR
bolt_hole_quantity10
cross-sectional_thickness0.063 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-G-12803,+1161-A MIL SPEC ALL MATERIAL RESPONSES OVERALL
NSN5330-00-160-6682
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3340386 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
•
CROSS-SECTIONAL THICKNESS: 0.063 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NON-CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-12803,+1161-A MIL SPEC ALL MATERIAL RESPONSES OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
APERTURE WIDTH: 3.750 INCHES NOMINAL IN
•
APERTURE LENGTH: 5.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.063 INCHES NOMINAL IN
STYLE DESIGNATORNON-CIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-12803,+1161-A MIL SPEC ALL MATERIAL RESPONSES OVERALL
OVERALL LENGTH10.000 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OVERALL WIDTH8.000 INCHES NOMINAL IN
APERTURE WIDTH3.750 INCHES NOMINAL IN
APERTURE LENGTH5.250 INCHES NOMINAL IN
BOLT HOLE QUANTITY10
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH2.500 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
SUBSTITUTES & CROSS-REFERENCES 1
V66Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3340386?
3340386 is a GASKET.
What parts can replace 3340386?
There is 1 known substitute for 3340386: V66. Substitute compatibility should be verified for your specific system.
What is the NSN for 3340386?
3340386 is cataloged in the U.S. Government catalog under NSN 5330-00-160-6682. 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.