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Technical Data Sheet
PartsTable / O-RING / AS3581-042
AS3581-042 ✓ 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. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-603-5455, 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
AS3581-042
NSN: 5331-01-603-5455
FSC: 5331 — O-RING
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
Part NumberAS3581-042
NSN5331-01-603-5455
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS3581-042 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
2-041 N304-75Interchangeable
interchangeable cross-reference
interchangeable
10V70-332-28775-039Interchangeable
interchangeable cross-reference
interchangeable
SR 832-75-041Interchangeable
interchangeable cross-reference
interchangeable
D50-0020 ITEM 14Interchangeable
interchangeable cross-reference
interchangeable
SAE-AMS 7259Interchangeable
interchangeable cross-reference
interchangeable
M83248/2-042Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS3581-042?
AS3581-042 is a O-RING.
What parts can replace AS3581-042?
There are 8 known substitutes for AS3581-042: 2-041 N304-75, 10V70-332-28775-039, SR 832-75-041 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS3581-042?
AS3581-042 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-603-5455. 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