Part Number HS4447 428 having (CAGE Code 8V613) and FSC 5310 Nuts and Washers in stock with ready to ship. Get an instant quote for HS4447 428 Nut Self Locking Double Hexagon 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.