Part Number 4S9-2 having (CAGE Code D0680) and FSC 5310 Nuts and Washers in stock with ready to ship. Get an instant quote for 4S9-2 Push On Nut by Alcoa Fastening Systems Fairchild. 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.