NBR O‑Ring 219x5 mm

NBR O‑Ring 219x5 mm - 70 ShA Nitrile Oil-Resistant Seal

The NBR O‑Ring 219x5 mm is a premium nitrile (Buna‑N) seal, offering outstanding resistance to mineral oils, greases, diesel fuels, and standard hydraulic fluids. Crafted from 70 ShA hardness material, it strikes the perfect balance between durability and flexibility—ideal for both static and dynamic sealing tasks.

Specifications:

• Internal diameter: 219 mm

• Cross-section: 5 mm

• Material: NBR (nitrile rubber), 70 ShA hardness

• Suitable standards: DIN 3771, ISO 3601

• Temperature range: -30 °C to +135 °C

Key Benefits:

• Excellent sealing performance in oil-resistant environments

• Robust against wear, compression set, and mechanical fatigue

• Compatible with standard grooves for ease of replacement

• Versatile usage across pumps, hydraulic cylinders, valves, automotive gaskets, and industrial machinery

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FAQ

Q1: What does 70 ShA hardness mean?
It designates a balanced elasticity and firmness, ideal for oil and hydraulic applications

Q2: Which fluids is this O‑ring resistant to?
Mineral oils, lubricating greases, diesel fuel, hydraulic fluids—resistant to water up to around +80 °C.

Q3: What is the temperature range?
Works reliably between -30 °C and +135 °C.

Q4: Is it suitable for dynamic sealing?
Yes—designed for both static and light dynamic applications; best performance in static or slow-moving setups.

Q5: Does it meet industry standards?
Fully compliant with DIN 3771 and ISO 3601 metric O‑ring standards