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AS3581-242 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

AS3581-242: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROCARBON CLASS FPM, center_hole_diameter: 3.956 INCHES MINIMUM AND 4.012 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN, end_item_identification: VALVE, RELEIF, material_document_and_classification: AMS 7259 ASSN STD SINGLE MATERIAL RESPONSE, part_name_assigned_by_controlling_agency: O-RING. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-617-3126, 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
AS3581-242
NSN: 5331-01-617-3126
FSC: 5331 — O-ring
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM
center_hole_diameter3.956 INCHES MINIMUM AND 4.012 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
end_item_identificationVALVE, RELEIF
material_document_and_classificationAMS 7259 ASSN STD SINGLE MATERIAL RESPONSE
part_name_assigned_by_controlling_agencyO-RING
NSN5331-01-617-3126
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS3581-242 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 7259 ASSN STD SINGLE MATERIAL RESPONSE
•
CENTER HOLE DIAMETER: 3.956 INCHES MINIMUM AND 4.012 INCHES MAXIMUM IN
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 7259 ASSN STD SINGLE MATERIAL RESPONSE
CENTER HOLE DIAMETER3.956 INCHES MINIMUM AND 4.012 INCHES MAXIMUM IN
PART NAME ASSIGNED BY CONTROLLING AGENCYO-RING
END ITEM IDENTIFICATIONVALVE, RELEIF
MATERIALRUBBER FLUOROCARBON CLASS FPM
OTHER ITEMS IN FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971 5331-00-001-1979 5331-00-001-3904 5331-00-001-3905 5331-00-001-3906 5331-00-001-3908 5331-00-001-3923 5331-00-001-3924
SUBSTITUTES & CROSS-REFERENCES 2
SAE-AS3581Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
D2000FF-B16.24 ITEM 12Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AS3581-242?
AS3581-242 is a O-RING.
What parts can replace AS3581-242?
There are 2 known substitutes for AS3581-242: SAE-AS3581, D2000FF-B16.24 ITEM 12. Substitute compatibility should be verified for your specific system.
What is the NSN for AS3581-242?
AS3581-242 is cataloged in the U.S. Government catalog under NSN 5331-01-617-3126. This indicates validated use in U.S. government and defense supply chains.
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