Part Number 520 4 00373 000 having (CAGE Code K4547) and FSC 5980 Optoelectronic Devices and Associated Hardware in stock with ready to ship. Get an instant quote for 520 4 00373 000 Light Emitting Diode by Siemens Air Traffic Management. 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.