Part Number 131823H6M-0320 Tube Penumatic Air Window Defrost in stock with ready to ship. Get an instant quote for Hawker Beechcraft part number 131823H6M-0320 by filling form below with your desired order quantity, targeted price and the expected order-fulfilment date. Get instant quote for 131823H6M-0320. Our dedicated account manager will get back to you within 15 minutes.