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321494 ITEM 11 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

321494 ITEM 11: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include hole_diameter: 0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 6.000 INCHES NOMINAL IN, overall_length: 6.000 INCHES NOMINAL IN, aperture_diameter: 4.250 INCHES NOMINAL IN, cross-sectional_thickness: 0.125 INCHES NOMINAL IN, outside_edge_to_bolt_hole_center_distance_along_width: 0.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-124-5804, 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
321494 ITEM 11
NSN: 5330-01-124-5804
FSC: 5330 — Packing and Gasket Materials
CAGE: 34712 — LAKE SHORE SYSTEMS, INC. (USA)
SPECIFICATIONS
hole_diameter0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width6.000 INCHES NOMINAL IN
overall_length6.000 INCHES NOMINAL IN
aperture_diameter4.250 INCHES NOMINAL IN
bolt_hole_quantity4
cross-sectional_thickness0.125 INCHES NOMINAL IN
outside_edge_to_bolt_hole_center_distance_along_width0.500 INCHES NOMINAL IN
outside_edge_to_bolt_hole_center_distance_along_length0.500 INCHES NOMINAL IN
center_to_center_distance_between_bolt_holes_along_width5.000 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
center_to_center_distance_between_bolt_holes_along_length5.000 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
NSN5330-01-124-5804
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 321494 ITEM 11 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: 0.125 INCHES NOMINAL IN
•
APERTURE DIAMETER: 4.250 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 4
•
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH: 5.000 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH: 5.000 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH: 0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.125 INCHES NOMINAL IN
OVERALL LENGTH6.000 INCHES NOMINAL IN
OVERALL WIDTH6.000 INCHES NOMINAL IN
APERTURE DIAMETER4.250 INCHES NOMINAL IN
BOLT HOLE QUANTITY4
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH5.000 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH5.000 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH0.500 INCHES NOMINAL IN
HOLE DIAMETER0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG WIDTH0.500 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 321494 ITEM 11?
321494 ITEM 11 is a GASKET.
What is the NSN for 321494 ITEM 11?
321494 ITEM 11 is cataloged in the U.S. Government catalog under NSN 5330-01-124-5804. 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.