Part Number 275D 508 having (CAGE Code 78711) and FSC 1680 Miscellaneous Aircraft Accessories and Components in stock with ready to ship. Get an instant quote for 275D 508 Seat Electronics Un by Telephonics Corp. 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.