CS 4.0mm/5.0mm NBR OD 12mm-400mm Black Nitrile Rubber O-ring Oil Seal Sealing Ring Temperature Resistance Resistant Gasket

CS 4.0mm/5.0mm NBR OD 12mm-400mm Black Nitrile Rubber O-ring Oil Seal Sealing Ring Temperature Resistance Resistant Gasket

Aliexpress UK