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6405C — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

6405C: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: PAPER OVERALL, hole_diameter: 0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 8.438 INCHES NOMINAL IN, overall_length: 9.625 INCHES NOMINAL IN, special_features: APERTURE WIDTHS 3.000 IN. AND 3.562 IN.; APERTURE LENGTHS 3.000 IN.

AND 7.062 IN. IN, cross-sectional_thickness: 0.031 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-315-0213, 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
6405C
NSN: 5330-00-315-0213
FSC: 5330 — Packing and Gasket Materials
CAGE: 78222 — R. H. SHEPPARD CO., INC. DBA SHEPPARD (USA)
SPECIFICATIONS
materialPAPER OVERALL
hole_diameter0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width8.438 INCHES NOMINAL IN
overall_length9.625 INCHES NOMINAL IN
special_featuresAPERTURE WIDTHS 3.000 IN. AND 3.562 IN.; APERTURE LENGTHS 3.000 IN. AND 7.062 IN. IN
cross-sectional_thickness0.031 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-00-315-0213
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6405C 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: 0.031 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
MATERIAL: PAPER OVERALL
•
HOLE DIAMETER: 0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
OVERALL LENGTH9.625 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OVERALL WIDTH8.438 INCHES NOMINAL IN
SPECIAL FEATURESAPERTURE WIDTHS 3.000 IN. AND 3.562 IN.; APERTURE LENGTHS 3.000 IN. AND 7.062 IN. IN
MATERIALPAPER OVERALL
HOLE DIAMETER0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6405C?
6405C is a GASKET.
What is the NSN for 6405C?
6405C is cataloged in the U.S. Government catalog under NSN 5330-00-315-0213. 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.