Part Number CR1-6-2NN having (CAGE Code F0271) and FSC 4820 Valves Nonpowered in stock with ready to ship. Get an instant quote for CR1-6-2NN Valve Check by Senior Aerospace. 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.