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Technical Data Sheet
JCUS30 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OR ASBESTOS AND RUBBER NATURAL OR RUBBER SYNTHETIC OVERALL, outside_diameter: 4.526 INCHES MINIMUM AND 4.536 INCHES MAXIMUM IN, style_designator: CIRCULAR, aperture_diameter: 4.020 INCHES MINIMUM AND 4.040 INCHES MAXIMUM IN, cross-sectional_thickness: 0.094 INCHES NOMINAL IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-291-6665, 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
JCUS30
NSN: 5330-00-291-6665
FSC: 5330
CAGE: 79260 — WALKER MFG CO (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OR ASBESTOS AND RUBBER NATURAL OR RUBBER SYNTHETIC OVERALL
outside_diameter4.526 INCHES MINIMUM AND 4.536 INCHES MAXIMUM IN
style_designatorCIRCULAR
aperture_diameter4.020 INCHES MINIMUM AND 4.040 INCHES MAXIMUM IN
cross-sectional_thickness0.094 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-A-17472 MIL SPEC 2ND MATERIAL RESPONSE AND MIL-A-17472 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-A-17472 MIL SPEC 4TH MATERIAL RESPONSE OVERALL
NSN5330-00-291-6665
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: JCUS30 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
MATERIAL: RUBBER SYNTHETIC OR ASBESTOS AND RUBBER NATURAL OR RUBBER SYNTHETIC OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-A-17472 MIL SPEC 2ND MATERIAL RESPONSE AND MIL-A-17472 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-A-17472 MIL SPEC 4TH MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL THICKNESS: 0.094 INCHES NOMINAL IN
APERTURE DIAMETER: 4.020 INCHES MINIMUM AND 4.040 INCHES MAXIMUM IN
STYLE DESIGNATOR: CIRCULAR
OUTSIDE DIAMETER: 4.526 INCHES MINIMUM AND 4.536 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER SYNTHETIC OR ASBESTOS AND RUBBER NATURAL OR RUBBER SYNTHETIC OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-A-17472 MIL SPEC 2ND MATERIAL RESPONSE AND MIL-A-17472 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-A-17472 MIL SPEC 4TH MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL THICKNESS0.094 INCHES NOMINAL IN
APERTURE DIAMETER4.020 INCHES MINIMUM AND 4.040 INCHES MAXIMUM IN
STYLE DESIGNATORCIRCULAR
OUTSIDE DIAMETER4.526 INCHES MINIMUM AND 4.536 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
17394Interchangeable
interchangeable cross-reference
interchangeable
10200-24Interchangeable
interchangeable cross-reference
interchangeable
31408-4Interchangeable
interchangeable cross-reference
interchangeable
4412-5Interchangeable
interchangeable cross-reference
interchangeable
4356270-1Interchangeable
Same NIIN cross-reference
interchangeable
685625Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is JCUS30?
JCUS30 is a GASKET.
What parts can replace JCUS30?
There are 9 known substitutes for JCUS30: 17394, 10200-24, 31408-4 and 6 more. Substitute compatibility should be verified for your specific system.
Is JCUS30 still available?
JCUS30 is currently cancelled.
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