PartsTable
Technical Data Sheet
PartsTable / O-RING / AS3581-240
AS3581-240 ✓ 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: RUBBER SYNTHETIC, temp_rating: -15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF, hardness_rating: 90.0 SHORE DUROMETER A NOMINAL, cross-sectional_height: 0.139 INCHES NOMINAL 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 5331-01-129-2730, 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
AS3581-240
NSN: 5331-01-129-2730
FSC: 5331 — O-RING
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
temp_rating-15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
hardness_rating90.0 SHORE DUROMETER A NOMINAL
cross-sectional_height0.139 INCHES NOMINAL IN
NSN5331-01-129-2730
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS3581-240 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
•
HARDNESS RATING: 90.0 SHORE DUROMETER A NOMINAL
•
MATERIAL: RUBBER SYNTHETIC
•
CROSS-SECTIONAL HEIGHT: 0.139 INCHES NOMINAL IN
•
TEMP RATING: -15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
TECHNICAL CHARACTERISTICS (FLIS)
HARDNESS RATING90.0 SHORE DUROMETER A NOMINAL
MATERIALRUBBER SYNTHETIC
CROSS-SECTIONAL HEIGHT0.139 INCHES NOMINAL IN
TEMP RATING-15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
MIL-R-83248/2Interchangeable
interchangeable cross-reference
interchangeable
MS83248/2-240Interchangeable
interchangeable cross-reference
interchangeable
M83248/2-240Interchangeable
interchangeable cross-reference
interchangeable
SAE SAE AS3581-240Interchangeable
Same NIIN cross-reference
interchangeable
SAE-AS3581Interchangeable
Same NIIN cross-reference
interchangeable
2-240 V709-90Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy AS3581-240?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is AS3581-240?
AS3581-240 is a O-RING.
What parts can replace AS3581-240?
There are 8 known substitutes for AS3581-240: MIL-R-83248/2, MS83248/2-240, M83248/2-240 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS3581-240?
AS3581-240 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-129-2730. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — AS3581-240

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026