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Technical Data Sheet
PartsTable / O-RING / AS3581-280
AS3581-280 ✓ 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 part_name_assigned_by_controlling_agency: O-RING, CERT OXYGEN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-083-6504, 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
AS3581-280
NSN: 5331-01-083-6504
FSC: 5331 — O-RING
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyO-RING, CERT OXYGEN
NSN5331-01-083-6504
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS3581-280 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 FLUOROCARBON CLASS FPM
•
ELONGATION PERCENTAGE: 125 MAXIMUM
•
HARDNESS RATING: 90.0 SHORE DUROMETER A NOMINAL
•
CENTER HOLE DIAMETER: 13.919 INCHES MINIMUM AND 14.049 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 14.262 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER FLUOROCARBON CLASS FPM
ELONGATION PERCENTAGE125 MAXIMUM
HARDNESS RATING90.0 SHORE DUROMETER A NOMINAL
CENTER HOLE DIAMETER13.919 INCHES MINIMUM AND 14.049 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
OUTSIDE DIAMETER14.262 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
M83485/1-140Interchangeable
interchangeable cross-reference
interchangeable
SAE-AS3581Interchangeable
interchangeable cross-reference
interchangeable
AMS7259DInterchangeable
interchangeable cross-reference
interchangeable
AS3581-280Interchangeable
interchangeable cross-reference
interchangeable
SAE-AS83248/2Interchangeable
interchangeable cross-reference
interchangeable
M83248/2-908Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS3581-280?
AS3581-280 is a O-RING.
What parts can replace AS3581-280?
There are 10 known substitutes for AS3581-280: M83485/1-140, SAE-AS3581, AMS7259D and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS3581-280?
AS3581-280 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-083-6504. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026