Part Number 646B1-3-8-52SS having (CAGE Code 86768) and FSC 4820 Valves Nonpowered in stock with ready to ship. Get an instant quote for 646B1-3-8-52SS Valve Safety Relief by Teledyne Inc Teledyne Components. 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.