Standard SAE 70D Buna-N O-Ring, 1/4"x1/2"x1/8"

Standard SAE 70D Buna-N O-Ring, 1/4"x1/2"x1/8"

The Standard SAE 70D Buna-N O-Ring is a reliable sealing component designed for use in hydraulic, pneumatic, and fluid transfer systems. Manufactured from Buna-N (Nitrile) rubber with a 70 durometer hardness, this O-ring offers excellent resistance to oils, fuels, and many petroleum-based fluids. Its flexible yet durable construction allows it to create a tight seal between mating surfaces, helping prevent leaks in fittings, valves, cylinders, and other mechanical assemblies. In other words, it’s a small part with a big responsibility—keeping fluids where they belong instead of slowly escaping.

Country of Origin
Varies by production batch

Key Features / Specifications

• Product Type: Sealing O-ring
• Material: Buna-N (Nitrile rubber)
• Durometer Hardness: 70D
• Standard: SAE
• Function: Provides a compression seal between mating components
• Fluid Compatibility: Resistant to oils, fuels, hydraulic fluids, and petroleum-based lubricants
• Temperature Performance: Suitable for typical industrial operating temperatures
• Design: Flexible elastomer ring for reliable sealing under compression

Ideal For

• Hydraulic and pneumatic system sealing
• Agricultural and industrial equipment maintenance
• Fuel system and oil system seals
• General-purpose fluid sealing applications
• Anyone who appreciates a seal that stays tight instead of slowly turning into a mystery leak