RS PRO Nitrile Rubber (NBR) O-Ring, 8.1 mm ID x 11.3 mm OD x 1.6 mm Thickness, Shore 70, 128-827

RS PRO 128-827 is a high-quality Nitrile Rubber (NBR) O-Ring specifically designed to deliver robust and reliable sealing solutions across a broad spectrum of industrial and engineering applications. This O-Ring features an internal diameter of 8.1 mm, an external diameter of 11.3 mm, and a material thickness of 1.6 mm, providing a precision fit for demanding fluid-power and mechanical assemblies.

Constructed from Nitrile Rubber (NBR), which is known for its excellent resistance to petroleum-based oils and greases, this O-Ring ensures optimal performance in systems exposed to both abrasive and chemically challenging environments. Its Shore 70 hardness provides substantial mechanical strength and high sealing efficacy, effectively preventing leaks and maintaining pressure integrity.

The product is engineered to operate reliably within a wide temperature range from -30°C up to 120°C (with short-term tolerance to higher temperatures), making it suitable for applications in automotive, aerospace, hydraulic machinery, and general engineering systems. It maintains flexibility and resilience under both cold and hot conditions, ensuring consistent sealing even during temperature fluctuations.

RS PRO metric O-Rings are manufactured in accordance with stringent industry standards, meeting UR, CE, and cUR approvals for safety and performance. Typical use cases include sealing joints, preventing fluid escape, and protecting mechanical integrity in hydraulic pumps, pneumatic systems, general maintenance, and laboratory equipment.

The Nitrile Rubber material offers superior resistance to mineral hydraulic oils, mineral-based greases, and abrasion, while also maintaining tolerance to specific chemical environments. However, NBR is not recommended for use with esters, ozone, ketones, aldehydes, chlorinated hydrocarbons, or nitro carbons.

With a country of origin specified as Italy, RS PRO 128-827 O-Ring fits both metric and imperial replacement requirements and is ideal for modern and older equipment alike. Its precise dimensions and hardness allow for reliable replacement and maintenance for continued operational integrity.

Applications span industrial, mechanical engineering, fluid power, automotive, aerospace, laboratory, and hydraulic systems. This product is a staple in maintenance packs and general machine sealing kits.

Constructed from durable Nitrile Rubber (NBR) for robust resistance to abrasion and petroleum products. Designed with precise 8.1 mm inner diameter, 11.3 mm outer diameter, and 1.6 mm thickness for exact fit. Shore 70 hardness ensures high mechanical strength and sealing efficiency in demanding environments.

Supports operating temperatures from -30°C to 120°C for compatibility with a range of fluids and conditions. Meets UR, CE, and cUR standards for safety and reliability. Ideal for use in automotive, aerospace, hydraulic, and general engineering sealing applications.

Maintains performance in both low and high temperatures, suitable for mineral hydraulic oils and greases. Produced in Italy and suitable for metric systems. Browse more industrial Gasket & Seal products by RS PRO in the EnvMart catalogue for quality sealing solutions tailored to diverse industrial needs.

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