Part Number 390-4005-0001 Kit Aft Floor Panel Assy Info On in stock with ready to ship. Get an instant quote for Hawker Beechcraft part number 390-4005-0001 by filling form below with your desired order quantity, targeted price and the expected order-fulfilment date. Get instant quote for 390-4005-0001. Our dedicated account manager will get back to you within 15 minutes.