O RING - OTC Tools and Equipment

The OTC 10279 O-RING is a professional-grade sealing solution engineered for demanding automotive and industrial applications. Constructed from EPDM (Ethylene Propylene Diene Monomer) rubber, this O-ring delivers reliable performance in environments where resistance to specific fluids and environmental factors is critical. Its precise dimensions and material composition ensure a secure and long-lasting seal for professional technicians and mechanics.

Key Features

• EPDM Construction: Manufactured from Ethylene Propylene Diene Monomer (EPDM), offering excellent resistance properties.
• Optimal Hardness: Features a 70 Durometer (Shore A) hardness, providing a balance of flexibility for sealing and durability for demanding use.
• Superior Chemical Resistance: Resists hot water, steam up to 300°F (149°C, and up to 400°F / 204°C in special compounds), glycol-based brake fluids, many organic and inorganic acids, cleaning agents, soda, potassium alkalis, and phosphate-ester based hydraulic fluids.
• Environmental Durability: Exhibits strong resistance to ozone, aging, and weathering, making it suitable for outdoor and varying temperature applications.
• FDA Compliant: Meets FDA standard requirements for food-handling applications, indicating high material purity and quality.
• Professional Grade: As an OTC Tools and Equipment component, it guarantees professional quality, precise fit, and reliability in critical systems.

Applications

The OTC 10279 O-RING is ideal for sealing applications across a range of automotive and industrial systems, particularly where petroleum oils and fuels are not present due to EPDM's incompatibility with these substances.

• Brake Systems: Specifically designed for use with glycol-based brake fluids.
• Cooling Systems: Effective in hot water and steam environments.
• Hydraulic Systems: Suitable for phosphate-ester based hydraulic fluids.
• Industrial Equipment: Utilized in machinery requiring seals resistant to various cleaning agents, acids, and alkalis.
• General Sealing: Provides robust sealing in any application specifying an EPDM O-ring for its specific chemical and environmental resistance profile.

Specifications

• Material: EPDM (Ethylene Propylene Diene Monomer)
• Model Number: 10279 (AS568-279 Standard Size)
• Durometer: 70 Duro (Shore A)
• Color: Black
• Inside Diameter: 13 inches
• Outside Diameter: 13-1/4 inches
• Cross Section: 1/8 inch
• Operating Temperature Range: -65°F to +300°F (maximum 400°F / 204°C in water and/or steam)