Dynaline 54532 Metric O-Ring 50 x 57 - 10/pkg, 10 per pkg

Buna N-70R Nitrile Durometer A. Conforms to ASTM D2000 M2BF714, B14, EA14, EF11, EF21, EO14, EO34. Thickness: 3.5 mm, Inside Diameter: 50 mm, Outside Diameter: 57 mm Material: Buna N-70R Nitrile Durometer A. Type: Metric. Inside Diameter: 50 mm. Outside Diameter: 57 mm. Thickness: 3.5 mm.