Part Number H49900-5 having (CAGE Code 15653) and FSC 5310 Nuts and Washers in stock with ready to ship. Get an instant quote for H49900-5 Nut Self Locking Double Hexagon by Alcoa Global Fasteners Inc. 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.