Part Number 64-C4 having (CAGE Code 7P940) and FSC 5310 Nuts and Washers in stock with ready to ship. Get an instant quote for 64-C4 Washer Slotted by U S Air Tool Co Usatco Air World Div. 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.