Part Number 15-0500-03697 PC 105 having (CAGE Code 3BNF6) and FSC 5310 Nuts and Washers in stock with ready to ship. Get an instant quote for 15-0500-03697 PC 105 Washer Flat by Cincinnati Steel Treating Company The. 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.