![NBR O-ring 380.37 x 6.99mm (OD 394.35mm) 70 Shore A [2 Pieces]](https://www.toolorbit.shop/wp-content/uploads/2025/11/nbr-o-ring-380-37-x-6-99mm-od-394-35mm-70-shore-a-2-pieces-avozlwil03859.webp)
Description
This O-ring has a 380.37 mm internal diameter and a 6.99 mm thick cord.
NBR O-rings are commonly used in hydraulic cylinders, pneumatic cylinders, and power transmissions. Thanks to the round shape, they resist compression and tearing. This means they retain strength over time, which makes them reusable.
Pros:
- Resistant to air, oils, solvents, alcohols, lubricants and water (up to +80°C)
- Suitable for temperatures from -25 to 100°C (-13 to 212°F)
- Conforms to DIN 3771, ISO 3601-1, JIS 240 P+G, SMS 1586, BS 1806/AS 568 A, BS 4518
Cons:
- Sensitive to weather influences
- Unsuitable for glycol brake fluid, high aromatic fuels, and polar solvents
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