Part Number GA173-2990-1-4 having (CAGE Code 28510) and FSC 5310 Nuts and Washers in stock with ready to ship. Get an instant quote for GA173-2990-1-4 Washer Flat by General Aviation Industries 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.