Part Number 300-0270-1 Aft Evaporator Assembly Aft in stock with ready to ship. Get an instant quote for Hawker Beechcraft part number 300-0270-1 by filling form below with your desired order quantity, targeted price and the expected order-fulfilment date. Get instant quote for 300-0270-1. Our dedicated account manager will get back to you within 15 minutes.