PartsTable
Technical Data Sheet
AS3581-212 ✓ 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 color: BLACK, material: RUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM, temp_rating: -200.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF, hardness_rating: 85.0 SHORE DUROMETER A MINIMUM AND 95.0 SHORE DUROMETER A MAXIMUM, center_hole_diameter: 0.853 INCHES MINIMUM AND 0.865 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-140-7664, 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
AS3581-212
NSN: 5331-00-140-7664
FSC: 5331 — O-RING
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
colorBLACK
materialRUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM
temp_rating-200.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF
hardness_rating85.0 SHORE DUROMETER A MINIMUM AND 95.0 SHORE DUROMETER A MAXIMUM
center_hole_diameter0.853 INCHES MINIMUM AND 0.865 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
end_item_identificationSD ACCUMULATOR ASSY
criticality_code_justificationMATT
material_document_and_classificationSAE-AMS7259 NATIONAL SPEC SINGLE MATERIAL RESPONSE
NSN5331-00-140-7664
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS3581-212 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
OUTSIDE DIAMETER: 1.137 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
CRITICALITY CODE JUSTIFICATION: ZZZW
DEPARTURE FROM CITED DOCUMENT: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
CENTER HOLE DIAMETER: 0.849 INCHES MINIMUM AND 0.869 INCHES MAXIMUM IN
HARDNESS RATING: 90.0 SHORE DUROMETER A NOMINAL
TEMP RATING: -20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER1.137 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
CRITICALITY CODE JUSTIFICATIONZZZW
DEPARTURE FROM CITED DOCUMENTCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
MATERIALRUBBER FLUOROCARBON CLASS FPM
CENTER HOLE DIAMETER0.849 INCHES MINIMUM AND 0.869 INCHES MAXIMUM IN
HARDNESS RATING90.0 SHORE DUROMETER A NOMINAL
TEMP RATING-20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
D60-0003 ITEM 2Interchangeable
interchangeable cross-reference
interchangeable
39821274Interchangeable
interchangeable cross-reference
interchangeable
211472Interchangeable
interchangeable cross-reference
interchangeable
D84232 PIECE 53Interchangeable
interchangeable cross-reference
interchangeable
M83248/1-212Interchangeable
interchangeable cross-reference
interchangeable
2-212-V884-75Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS3581-212?
AS3581-212 is a O-RING.
What parts can replace AS3581-212?
There are 11 known substitutes for AS3581-212: D60-0003 ITEM 2, 39821274, 211472 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS3581-212?
AS3581-212 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-140-7664. This indicates validated use in U.S. government and defense supply chains.
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