Part Number N5-3983 FIND 4 1.5IN having (CAGE Code 11836) and FSC 4820 Valves Nonpowered in stock with ready to ship. Get an instant quote for N5-3983 FIND 4 1.5IN Cover Nut Valve by National Oilwell Varco 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.