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Technical Data Sheet
PartsTable / O-RING / AS568B-329
AS568B-329 ✓ 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 outside_diameter: 2.395 INCHES NOMINAL IN, center_hole_diameter: 1.957 INCHES MINIMUM AND 1.993 INCHES MAXIMUM IN, cross-sectional_height: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-261-2357, 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-329
NSN: 5331-01-261-2357
FSC: 5331 — O-RING
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
outside_diameter2.395 INCHES NOMINAL IN
center_hole_diameter1.957 INCHES MINIMUM AND 1.993 INCHES MAXIMUM IN
cross-sectional_height0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
NSN5331-01-261-2357
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS568B-329 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
•
CENTER HOLE DIAMETER: 1.957 INCHES MINIMUM AND 1.993 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 2.395 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER1.957 INCHES MINIMUM AND 1.993 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
OUTSIDE DIAMETER2.395 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
6406593-MTPD-A15Interchangeable
interchangeable cross-reference
interchangeable
73160-329Interchangeable
interchangeable cross-reference
interchangeable
AS568-329Interchangeable
interchangeable cross-reference
interchangeable
0227-32Interchangeable
interchangeable cross-reference
interchangeable
1726660 LINE 11Interchangeable
interchangeable cross-reference
interchangeable
D2000 GRADE M3BC714Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS568B-329?
AS568B-329 is a O-RING.
What parts can replace AS568B-329?
There are 7 known substitutes for AS568B-329: 6406593-MTPD-A15, 73160-329, AS568-329 and 4 more. Substitute compatibility should be verified for your specific system.
Is AS568B-329 still available?
AS568B-329 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