Overview
The Motion Industries 326 Buna O-Ring is a standard ASA/SAE dash-size seal engineered for industrial sealing applications. This 5-pack provides proven durability and cost-effective maintenance inventory for OEMs, system integrators, and maintenance teams. Buna-N (nitrile) material is the industry standard for oil-resistant sealing across hydraulic systems, pneumatic equipment, compressors, and lubricated machinery.
Key Features
- Buna-N material resists mineral oils, synthetic fluids, and common industrial lubricants
- 5-pack quantity reduces reordering frequency and maintains spare inventory
- Standard ASA/SAE dash size ensures cross-compatibility with equivalent seals
- Suitable for static and dynamic sealing applications
- Operating temperature range typical for Buna-N materials
Technical Specifications
- Material: Buna-N (Nitrile)
- Dash Size: 326 (ASA/SAE standard)
- Quantity: 5 O-rings per pack
- Seal Type: Standard round cross-section
- Chemical Resistance: Oils, fuels, mineral fluids, synthetic lubricants
- Typical Service Temperature: -40°F to +212°F (-40°C to +100°C)
- Pressure Rating: Suitable for standard industrial pressures
Typical Applications
- Hydraulic cylinder rod and bore seals
- Pump inlet and outlet ports
- Compressor head and cap seals
- Pneumatic equipment and solenoid valve seals
- Gear box and transmission seals
- General industrial equipment maintenance and repair
Compatibility & Replacements
Compatible With
- ISO 3452-3 standardized seal cavities for dash 326
- Hydraulic systems operating with mineral oil and synthetic fluids
- Pneumatic and air-driven equipment
- Industrial pumps, compressors, and transmission assemblies
- OEM equipment using ASA/SAE dash-size seals
Replaces / Drop-In Replacement For
- Equivalent 326-size seals from other industrial suppliers
- Original OEM 326 O-ring seals in hydraulic and pneumatic equipment
- Verify compatibility with your specific equipment manufacturer before ordering to ensure proper fit and performance
Works With
- Standard ISO 3452-3 cavity designs
- Hydraulic fluids: mineral oil, synthetic, high-water-content fluids
- Pneumatic systems and air-operated equipment
- Industrial lubricants and machine oils



