Part Number STN-506 having (CAGE Code 1GD20) and FSC 5310 Nuts and Washers in stock with ready to ship. Get an instant quote for STN-506 Nut Plain Hexagon by Reliable Tool And Machine Company 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.