Part Number 310-3-1 8D having (CAGE Code 81400) and FSC 4820 Valves Nonpowered in stock with ready to ship. Get an instant quote for 310-3-1 8D Valve Linear Direct by Haskel Intl Inc. 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.