Part Number 12D1001-20 having (CAGE Code 57368) and FSC 5310 Nuts and Washers in stock with ready to ship. Get an instant quote for 12D1001-20 Nut Self Locking Hexagon by Mil Spec 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.