Part Number 8504540-15 having (CAGE Code 11447) and FSC 5955 Oscillators Piezoelectric Crystals in stock with ready to ship. Get an instant quote for 8504540-15 Crystal Unit Quartz by L 3 Communications Corporation. 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.