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4B8406 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

4B8406: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: COPPER OVERALL, outside_diameter: 1.234 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 0.891 INCHES NOMINAL IN, cross-sectional_thickness: 0.091 INCHES NOMINAL IN, cross-sectional_shape_style: RECTANGULAR METAL. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-423-9457, 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
4B8406
NSN: 5330-00-423-9457
FSC: 5330 — Packing and Gasket Materials
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialCOPPER OVERALL
outside_diameter1.234 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter0.891 INCHES NOMINAL IN
cross-sectional_thickness0.091 INCHES NOMINAL IN
cross-sectional_shape_styleRECTANGULAR METAL
NSN5330-00-423-9457
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4B8406 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: 0.091 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CIRCULAR
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR METAL
•
OUTSIDE DIAMETER: 1.234 INCHES NOMINAL IN
•
APERTURE DIAMETER: 0.891 INCHES NOMINAL IN
•
MATERIAL: COPPER OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.091 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
CROSS-SECTIONAL SHAPE STYLERECTANGULAR METAL
OUTSIDE DIAMETER1.234 INCHES NOMINAL IN
APERTURE DIAMETER0.891 INCHES NOMINAL IN
MATERIALCOPPER OVERALL
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
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 4B8406?
4B8406 is a GASKET.
What is the NSN for 4B8406?
4B8406 is cataloged in the U.S. Government catalog under NSN 5330-00-423-9457. 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.