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PartsTable / O-RING / AS568B-225
AS568B-225 ✓ 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, outside_diameter: 2.137 INCHES NOMINAL IN, center_hole_diameter: 1.841 INCHES MINIMUM AND 1.877 INCHES MAXIMUM IN, cross-sectional_height: 0.125 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 5331-00-811-8919, 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
AS568B-225
NSN: 5331-00-811-8919
FSC: 5331 — O-RING
CAGE: 25184 — PARKER HANNIFIN CORPORATION DIV O-RING DIVISION (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
outside_diameter2.137 INCHES NOMINAL IN
center_hole_diameter1.841 INCHES MINIMUM AND 1.877 INCHES MAXIMUM IN
cross-sectional_height0.125 INCHES NOMINAL IN
NSN5331-00-811-8919
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS568B-225 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: 2.137 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 1.841 INCHES MINIMUM AND 1.877 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.125 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER2.137 INCHES NOMINAL IN
CENTER HOLE DIAMETER1.841 INCHES MINIMUM AND 1.877 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.125 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
2-225 S613-60Interchangeable
interchangeable cross-reference
interchangeable
AS568-225Interchangeable
interchangeable cross-reference
interchangeable
568-225Interchangeable
interchangeable cross-reference
interchangeable
19134-3-14Interchangeable
interchangeable cross-reference
interchangeable
ASTM D2000Interchangeable
interchangeable cross-reference
interchangeable
ARP568-225Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS568B-225?
AS568B-225 is a O-RING.
What parts can replace AS568B-225?
There are 14 known substitutes for AS568B-225: 2-225 S613-60, AS568-225, 568-225 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS568B-225?
AS568B-225 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-811-8919. 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