Part Number 957-00049 having (CAGE Code 06828) and FSC 4820 Valves Nonpowered in stock with ready to ship. Get an instant quote for 957-00049 Cover Valve Check by Permutit Co The. Fill the form below with your desired order quantity, targeted price and the expected order-fulfilment date. Our dedicated account manager will get back to you within 15 minutes.