Part Number 1-64-21-15 having (CAGE Code 04577) and FSC 5365 Bushings, Rings, Shims, and Spacers in stock with ready to ship. Get an instant quote for 1-64-21-15 Ring Externally Threaded by Carelton Technologies. 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.