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AS568A-239 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

AS568A-239: O-RING.

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 part is cataloged in the U.S.

Government catalog 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
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 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
•
PERIPHERAL DIAMETER: 3.887 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 3.581 INCHES MINIMUM AND 3.637 INCHES MAXIMUM IN
•
MATERIAL: RUBBER ETHYLENE-PROPYLENE CLASS EPM
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 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
PERIPHERAL DIAMETER3.887 INCHES NOMINAL IN
CENTER HOLE DIAMETER3.581 INCHES MINIMUM AND 3.637 INCHES MAXIMUM IN
MATERIALRUBBER ETHYLENE-PROPYLENE CLASS EPM
SUBSTITUTES & CROSS-REFERENCES 5
MIL-R-83285 GRADE 80Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS33666-239Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-AMS-R-83285Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
M83285-239Reference document
Same NSN cross-reference
Reference document — Secondary reference
216-4384970,PC62Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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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 5 known substitutes for AS568A-239: MIL-R-83285 GRADE 80, MS33666-239, SAE-AMS-R-83285 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS568A-239?
AS568A-239 is cataloged in the U.S. Government catalog under NSN 5331-01-228-0606. This indicates validated use in U.S. government and defense supply chains.
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