Part Number 503-0010-01 having (CAGE Code 06275) and FSC 5365 Bushings, Rings, Shims, and Spacers in stock with ready to ship. Get an instant quote for 503-0010-01 Ring Diffuser Indicator by Allen R C Instruments 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.