PartsTable
Technical Data Sheet
AS3581-227 ✓ 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: FLUOROCARBON RUBBER, hardness_rating: 85.0 SHORE DUROMETER A NOMINAL AND 95.0 SHORE DUROMETER A NOMINAL, center_hole_diameter: 2.091 INCHES MINIMUM AND 2.127 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN, specification/standard_data: 0U583-AS3581 NATIONAL STD/SPEC, material_document_and_classification: AMS AS3581 AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-713-6663, 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
AS3581-227
NSN: 5331-01-713-6663
FSC: 5331 — O-RING
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialFLUOROCARBON RUBBER
hardness_rating85.0 SHORE DUROMETER A NOMINAL AND 95.0 SHORE DUROMETER A NOMINAL
center_hole_diameter2.091 INCHES MINIMUM AND 2.127 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
specification/standard_data0U583-AS3581 NATIONAL STD/SPEC
material_document_and_classificationAMS AS3581 AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE
part_name_assigned_by_controlling_agencyPACKING, PREFORMED - O-RING SEAL
NSN5331-01-713-6663
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS3581-227 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
HARDNESS RATING: 85.0 SHORE DUROMETER A NOMINAL AND 95.0 SHORE DUROMETER A NOMINAL
MATERIAL: FLUOROCARBON RUBBER
SPECIFICATION/STANDARD DATA: 0U583-AS3581 NATIONAL STD/SPEC
MATERIAL DOCUMENT AND CLASSIFICATION: AMS AS3581 AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE
CENTER HOLE DIAMETER: 2.091 INCHES MINIMUM AND 2.127 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
HARDNESS RATING85.0 SHORE DUROMETER A NOMINAL AND 95.0 SHORE DUROMETER A NOMINAL
MATERIALFLUOROCARBON RUBBER
PART NAME ASSIGNED BY CONTROLLING AGENCYPACKING, PREFORMED - O-RING SEAL
SPECIFICATION/STANDARD DATA0U583-AS3581 NATIONAL STD/SPEC
MATERIAL DOCUMENT AND CLASSIFICATIONAMS AS3581 AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE
CENTER HOLE DIAMETER2.091 INCHES MINIMUM AND 2.127 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
NAS1594-007Interchangeable
interchangeable cross-reference
interchangeable
2-007V709-90Interchangeable
interchangeable cross-reference
interchangeable
A211-8Interchangeable
interchangeable cross-reference
interchangeable
ARP568-021MILG23652 TY2Interchangeable
interchangeable cross-reference
interchangeable
AS3581CPInterchangeable
interchangeable cross-reference
interchangeable
ARP568-021MILG23652 TY2CPInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS3581-227?
AS3581-227 is a O-RING.
What parts can replace AS3581-227?
There are 18 known substitutes for AS3581-227: NAS1594-007, 2-007V709-90, A211-8 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS3581-227?
AS3581-227 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-713-6663. This indicates validated use in U.S. government and defense supply chains.
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