Part Number 503-639 having (CAGE Code 72798) and FSC 2540 Vehicular Furniture and Accessories in stock with ready to ship. Get an instant quote for 503-639 Heater Vehicular Compartment by Eagle Mfg Co. 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.