Part Number 428-9-05031 having (CAGE Code K6036) and FSC 5955 Oscillators Piezoelectric Crystals in stock with ready to ship. Get an instant quote for 428-9-05031 Crystal Unit Quartz by G E C Marconi Communications Ltd. 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.