Part Number W 4072 256AL O Ring in stock with ready to ship. Get an instant quote for Oerlikon Buehrle Ag Werkzeugmaschinenfabrik part number W 4072 256AL by filling form below with your desired order quantity, targeted price and the expected order-fulfilment date. Get instant quote for W 4072 256AL. Our dedicated account manager will get back to you within 15 minutes.