Product Overview O-Ring Imperial 3-1/2 x 3/16 NBR 5 PackIncludes: 5 pieces O-Ring Imperial 3-1/2 x 3/16 NBR Specifications: Inside Diameter: 3-1/2 inchOutside Diameter: 3-7/8 inchCross Section : 3/16 inchMaterial:Nitrile Buna Rubber Durometer:70 Reviews (No reviews yet) Write a Review