PartsTable
Technical Data Sheet
AS568A-239 ✓ 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 O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER ETHYLENE-PROPYLENE CLASS EPM, peripheral_diameter: 3.887 INCHES NOMINAL IN, center_hole_diameter: 3.581 INCHES MINIMUM AND 3.637 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN, criticality_code_justification: ZZZW. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-228-0606, 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
AS568A-239
NSN: 5331-01-228-0606
FSC: 5331 — O-RING
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialRUBBER ETHYLENE-PROPYLENE CLASS EPM
peripheral_diameter3.887 INCHES NOMINAL IN
center_hole_diameter3.581 INCHES MINIMUM AND 3.637 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
departure_from_cited_documentMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
criticality_code_justificationZZZW
NSN5331-01-228-0606
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS568A-239 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
PERIPHERAL DIAMETER: 3.887 INCHES NOMINAL IN
MATERIAL: RUBBER ETHYLENE-PROPYLENE CLASS EPM
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
CENTER HOLE DIAMETER: 3.581 INCHES MINIMUM AND 3.637 INCHES MAXIMUM IN
CRITICALITY CODE JUSTIFICATION: ZZZW
DEPARTURE FROM CITED DOCUMENT: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
TECHNICAL CHARACTERISTICS (FLIS)
PERIPHERAL DIAMETER3.887 INCHES NOMINAL IN
MATERIALRUBBER ETHYLENE-PROPYLENE CLASS EPM
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
CENTER HOLE DIAMETER3.581 INCHES MINIMUM AND 3.637 INCHES MAXIMUM IN
CRITICALITY CODE JUSTIFICATIONZZZW
DEPARTURE FROM CITED DOCUMENTMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
216-4384970,PC 64Interchangeable
interchangeable cross-reference
interchangeable
SAE-AMS-R-83285Interchangeable
interchangeable cross-reference
interchangeable
MS33666-241Interchangeable
interchangeable cross-reference
interchangeable
MIL-R-83285 GRADE 80Interchangeable
Same NIIN cross-reference
interchangeable
MS33666-239Interchangeable
Same NIIN cross-reference
interchangeable
M83285-239Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS568A-239?
AS568A-239 is a O-RING.
What parts can replace AS568A-239?
There are 7 known substitutes for AS568A-239: 216-4384970,PC 64, SAE-AMS-R-83285, MS33666-241 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS568A-239?
AS568A-239 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-228-0606. This indicates validated use in U.S. government and defense supply chains.
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