Part Number 5551978-19 having (CAGE Code 88277) and FSC 4820 Valves Nonpowered in stock with ready to ship. Get an instant quote for 5551978-19 Sleeve And Slide Directional Con by Boeing Company. 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.