270pcs Rubber O Ring Fluorine Assortment Set Universal Oil Gasket Seal Kit Box
1 X 270Pcs 18 Sizes O-ring Kit. Hydrogenated Nitrile Butadiene Rubber (HNBR), also known as Highly Saturated Nitrile (HSN) is special class of nitrile rubber (NBR) and is for mission critical applications.