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68A4-C304 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

68A4-C304: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC AND CORK OVERALL, hole_diameter: 0.312 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 4.000 INCHES NOMINAL IN, overall_length: 4.000 INCHES NOMINAL IN, style_designator: NON-CIRCULAR, aperture_diameter: 2.562 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-276-7502, 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
68A4-C304
NSN: 5330-01-276-7502
FSC: 5330 — Packing and Gasket Materials
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC AND CORK OVERALL
hole_diameter0.312 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width4.000 INCHES NOMINAL IN
overall_length4.000 INCHES NOMINAL IN
style_designatorNON-CIRCULAR
aperture_diameter2.562 INCHES NOMINAL IN
bolt_hole_quantity4
cross-sectional_thickness0.062 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-C-6188 TY 2 CL 2 GRADE C MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
outside_edge_to_bolt_hole_center_distance_along_width0.409 INCHES NOMINAL IN
outside_edge_to_bolt_hole_center_distance_along_length0.409 INCHES NOMINAL IN
NSN5330-01-276-7502
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 68A4-C304 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: 0.062 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NON-CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-C-6188 TY 2 CL 2 GRADE C MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
APERTURE DIAMETER: 2.562 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 4
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.062 INCHES NOMINAL IN
STYLE DESIGNATORNON-CIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-C-6188 TY 2 CL 2 GRADE C MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH4.000 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OVERALL WIDTH4.000 INCHES NOMINAL IN
APERTURE DIAMETER2.562 INCHES NOMINAL IN
BOLT HOLE QUANTITY4
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH3.182 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH3.182 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
SUBSTITUTES & CROSS-REFERENCES 1
MIL-C-6183BReference document
Same NSN cross-reference
Reference document — Identification reference
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 68A4-C304?
68A4-C304 is a GASKET.
What parts can replace 68A4-C304?
There is 1 known substitute for 68A4-C304: MIL-C-6183B. Substitute compatibility should be verified for your specific system.
What is the NSN for 68A4-C304?
68A4-C304 is cataloged in the U.S. Government catalog under NSN 5330-01-276-7502. This indicates validated use in U.S. government and defense supply chains.
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