Part Number 41N13-1 PC. 66 having (CAGE Code 02750) and FSC 5310 Nuts and Washers in stock with ready to ship. Get an instant quote for 41N13-1 PC. 66 Nut Plain Extended Washer Hexago by Eaton Aerospace Llc Div Electric. 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.