Part Number A490A-TS-DF-28 Power Supply in stock with ready to ship. Get an instant quote for Sikorsky Aircraft Corporation part number A490A-TS-DF-28 by filling form below with your desired order quantity, targeted price and the expected order-fulfilment date. Get instant quote for A490A-TS-DF-28. Our dedicated account manager will get back to you within 15 minutes.