O RING-212-NTRLE-70 - OTC Tools and Equipment

The OTC Tools and Equipment 10278 O-RING-212-NTRLE-70 is a professional-grade sealing solution engineered for reliable performance in demanding automotive and industrial applications. This O-ring, made from durable Nitrile (NBR) with a 70 Shore A durometer, provides essential sealing integrity against common automotive fluids and industrial lubricants. Designed to meet AS568-212 standards, it ensures a precise fit for critical sealing points.

Key Features

• Premium Nitrile (Buna-N) Construction: Manufactured from high-quality Nitrile (NBR), offering excellent resistance to petroleum-based oils, fuels, water, and hydraulic fluids.
• Optimal Hardness: Features a 70 Shore A durometer for a balance of flexibility and abrasion resistance, crucial for long-lasting seals in dynamic and static applications.
• Standardized Sizing (AS568-212): Conforms to AS568-212 dimensions, ensuring compatibility and reliable sealing for applications requiring this specific size.
• Wide Temperature Range: Maintains sealing effectiveness across a broad operating temperature range, typically from -40°F to +250°F (-37°C to 120°C).
• Durability and Compression Set Resistance: Engineered for professional use, this O-ring exhibits good compression set, tear, and abrasion resistance, contributing to extended service life.

Applications

This versatile Nitrile O-ring is an essential component for professional technicians and mechanics. It is commonly utilized in various automotive systems, including engine components, fuel systems (excluding highly oxygenated fuels), transmission assemblies, and power steering units. In industrial settings, it excels in hydraulic and pneumatic systems, pumps, and general machinery where sealing against oils, greases, and non-aromatic hydrocarbons is critical.

Specifications

• Manufacturer: OTC Tools and Equipment
• Model Number: 10278
• Material: Nitrile (NTRLE / NBR / Buna-N)
• Durometer: 70 Shore A
• AS568 Dash Size: -212
• Inside Diameter (ID): 0.859 inches (21.82 mm)
• Cross-Section (CS): 0.139 inches (3.53 mm)