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SAE AMS7270L
- Rings, Sealings, Butadiene-Acrylonitrile (NBR) Rubber Fuel Resistant 65 â 75
- standard by SAE International, 05/01/2010
- Publisher: SAE
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This specification covers a butadiene-acrylonitrile (NBR) rubber in the form of molded rings.These rings have been used typically for at temperatures as low as -67 \mDF (-55 \mDC) where resistance to fuel is required, but usage is not limited to such applications. The cross-section of such rings is usually not over 0.275 inch (6.98 mm) in diameter or thickness. Each application, however, should be considered individually.