Quick view Buna 90 O-rings 47.22 x 3.53mm Price for 25 pcs Metric B90 O-rings 47.22mm ID x 54.28mm OD x 3.53mm C/S 90 Durometer Rubber Buna O-rings Standard Nitrile is also known as Buna-N. Excellent resistance to petroleum-based oils and fuels, water and alcohols Price is for 25 pieces ... MSRP: Was: Now: $2.75 Add to Cart Compare