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Technical Data Sheet
PartsTable / O-RING / AS3581-216
AS3581-216 ✓ 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 FLUOROCARBON CLASS FPM, hardness_rating: 90.0 SHORE DUROMETER A NOMINAL, outside_diameter: 1.387 INCHES NOMINAL IN, center_hole_diameter: 1.103 INCHES MINIMUM AND 1.115 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN, end_item_identification: VALVE ANGLE REL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-166-1110, 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
AS3581-216
NSN: 5331-00-166-1110
FSC: 5331 — O-RING
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM
hardness_rating90.0 SHORE DUROMETER A NOMINAL
outside_diameter1.387 INCHES NOMINAL IN
center_hole_diameter1.103 INCHES MINIMUM AND 1.115 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
end_item_identificationVALVE ANGLE REL
part_name_assigned_by_controlling_agencyO-RING
NSN5331-00-166-1110
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS3581-216 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: 90.0 SHORE DUROMETER A NOMINAL
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
•
TEMP RATING: -20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
•
OUTSIDE DIAMETER: 1.387 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 1.097 INCHES MINIMUM AND 1.121 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
HARDNESS RATING90.0 SHORE DUROMETER A NOMINAL
END ITEM IDENTIFICATIONLOGISTICS SUPPORT VESSEL
MATERIALRUBBER FLUOROCARBON CLASS FPM
TEMP RATING-20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
OUTSIDE DIAMETER1.387 INCHES NOMINAL IN
CENTER HOLE DIAMETER1.097 INCHES MINIMUM AND 1.121 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
NAS1594-007Interchangeable
interchangeable cross-reference
interchangeable
2-007V709-90Interchangeable
interchangeable cross-reference
interchangeable
A211-8Interchangeable
interchangeable cross-reference
interchangeable
SAE AMS7259Interchangeable
interchangeable cross-reference
interchangeable
M83248/2-386Interchangeable
interchangeable cross-reference
interchangeable
SAE-AS3581Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS3581-216?
AS3581-216 is a O-RING.
What parts can replace AS3581-216?
There are 27 known substitutes for AS3581-216: NAS1594-007, 2-007V709-90, A211-8 and 24 more. Substitute compatibility should be verified for your specific system.
Is AS3581-216 still available?
AS3581-216 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026