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Technical Data Sheet
PartsTable / COMPONENT / 1290438
1290438 ✓ 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: CELLULOSE OVERALL, outside_diameter: 0.500 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 0.322 INCHES NOMINAL IN, cross-sectional_thickness: 0.0625 INCHES NOMINAL IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-227-9522, 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
1290438
NSN: 5330-00-227-9522
FSC: 5330
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialCELLULOSE OVERALL
outside_diameter0.500 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter0.322 INCHES NOMINAL IN
cross-sectional_thickness0.0625 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-00-227-9522
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1290438 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
•
APERTURE DIAMETER: 0.322 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.0625 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 0.500 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL: CELLULOSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
APERTURE DIAMETER0.322 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.0625 INCHES NOMINAL IN
OUTSIDE DIAMETER0.500 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
STYLE DESIGNATORCIRCULAR
MATERIALCELLULOSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
AS4167 TY2CL2STDInterchangeable
interchangeable cross-reference
interchangeable
BLK4122Interchangeable
interchangeable cross-reference
interchangeable
RX22AInterchangeable
interchangeable cross-reference
interchangeable
OXF31Interchangeable
interchangeable cross-reference
interchangeable
OXFORD31Interchangeable
interchangeable cross-reference
interchangeable
FED-STD 100Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1290438?
1290438 is a GASKET.
What parts can replace 1290438?
There are 23 known substitutes for 1290438: AS4167 TY2CL2STD, BLK4122, RX22A and 20 more. Substitute compatibility should be verified for your specific system.
Is 1290438 still available?
1290438 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026