Quick view sku: 1457MMB90 Buna 90 O-rings 145 x 7mm Price for 1 pc Metric B90 O-rings 145mm ID x 159mm OD x 7mm 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 $3.75 each ... MSRP: Now: $3.750 Add to Cart Compare Compare Selected