General description Sirius O-ring from Watts Industries is an assortment of GM O-rings ranging from No. 9 to No. 18, packaged in a bag of 25. These nitrile seals are specifically designed for water applications and offer excellent resistance to oils and fuels. Technical specifications Composition: Black Nitrile Density: 1.3 g/cm3 Shore A hardness: 70 (+/- 5) Elongation at break: 380% Load at break: 15 N/mm2 Tearing strength: 57 N/mm Maximum temperature: 90°C Minimum temperature: -20°C
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